Easy.

There is a huge portion of the country, about 1/3, that knows they aren't living the American dream, but they work hard and don't understand why.

Then, someone tells them something slightly true. That there's not enough pie to go around (semi-true), and that the reason there's not enough pie is all the immigrants and freeloaders who aren't working and are taking handouts (false).

What they aren't told is there could be enough pie to go around, if the top 1% was willing to share. They aren't. And they now control ~35% of wealth in the USA.

And then the top 1% uses that extra capital to tell that 1/3 of people that their Hispanic neighbor is the problem.

How has immigration affected the average voter?

Tasty ethnic food. There are tasty tacos around, some good Pho, there was an Ethiopian place around here, and tabouli with BBQ.

The remaining Caribbean place around here is really disappointing and the pulled pork is dry, so there is that.

there are several immigrants that made things worst: melania, THIEL, musk, cruz, . just not the ones that came with no money.

I live in Canada. While it is not the fault of individual immigrants, even the Government of Canada and big banks have admitted that abuse of the International Student and TFW programs has put a lot of strain of public infrastructure and housing supply and has suppressed wages. These issues have absolutely objectively affected the average Canadian.

Every now and then you get someone on social media try to be smart and smugly say something like, "International Students can't afford to buy a house. Explain to me how they're driving up the cost of housing." But they fail to realise it increases demand for rentals, and people buy single family homes to rent the rooms to those students, and so the demand for those rentals drives up the cost of houses.

You can acknowledge that not all immigration is good without blaming individual immigrants themselves. I'm always shocked when people who understand infinite growth is a fallacy when it comes to the corporate world, don't understand that trying to grow the population into infinity year after year is just the government equivalent of that fallacy.

Immigration in my area is heavily used for wage suppression.

Many people, when they look out at the world, all they want to see is themselves reflected back at them. When they see something else, they feel afraid.

No reasonable person has an issue with legal immigration, though plenty of unreasonable ones do. As far as illegal immigration goes, even Bernie Sanders said that a country without borders is not a country and that open borders is a Koch bothers idea.

Their eyes are offended by the very sight of someone different from them.

I had a pretty funny discussion where someone was like "they're bussing them in so they vote democrat!" And I was like, but they're not registered to vote. "Well the democrats want to change that." But most immigrants lean heavily republican, and are anti immigration as well, sort of a pull up the ladder behind you thing. "Well because even they know what the democrats are doing is stupid!"

And then 5 minutes later they're saying the first line, when they just agreed the exact opposite is true... it's like the facts are only true if it supports the argument that they're making at that exact instant

My personal explanation:

These are people who weren't here when those voters were children and a large part of the population are voting to stop time, not policies or anything.

1. They are willing to work for less than a normal American living wage. This reduces the amount that an American can work for for the same job. Globalists love this.
2. They bring and establish a different culture eroding a way of life that is considered American.

Those are two things I think someone might say about immigrants. Additionally, there's general disdain for the poor and many immigrants come here to escape worse poverty.

Surpressed wages. Immigration is just a consequence of the bourgeoisie war against the proletariat. It works double for them because they can blame the immigrants that they bring in for people's problems and can use them to make those problems worse.

You aren't going to find pro immigrant leftists. You will find humanitarian leftists that think the people the right bring here should be treated like people.

They have to look at brown people

Well, large tech corporations often cut costs by falsely listing impossible to meet job descriptions and then use that to ask the government for an excuse to hire a foreign worker, who they will hire despite not meeting the job descriptions either, but is willing to work for a fraction of what the domestic worker can afford to live on.

So there is that

But that's not the fault of those immigrants, who are just looking for a better opportunity; that's on the corporations abusing a system that is supposed to improve the domestic economy by bringing in top talent to American industry, not by displacing domestic employees and depressing wages.

And uh, also, the conservative wing and the administration isn't really upset about that at all, either.

Most of the things people listed in this comment section isn't a problem with immigration, but a problem with greedy rich people. Immigrants just get falsely labeled with these problems. Chop off the heads of the rich along with their entire bloodline and we'd have a lot less issues.

Is it ok to be against immigration that lets people be exploited, such as h1-b without sufficient enforcement, or undocumented aliens where the person is at risk but the employer is not. We can fix it by better support of employee rights regardless of immigration status

"they impregnate (who's kidding? they will say rape) our daughters"

Then something something blood purity. Probably come up with racial slurs for the baby and the mother as one if those 'insert slur'-'fuckers.'

The rednecks in America happen to do a hell of a lot of math. Oops. Meth. Not math. Well I guess they're doing math when they convert fractions into decimals.

Have you ever considered being a giant racist dick though?