Why do you believe that?
Because I don't believe those who vote republican are inherently more evil or stupid than those who vote democrat.
Because I saw the movement Obama made, and although he is much much much better than Trump, he was borderline Demi-god status to the left. Because throughout history, there are evil far left leaders that misled people and far right people that misled people.
Do you think the left in the U.S. are immune to tactics that have worked throughout human history in countries throughout south america, europe, asia and africa?
It stops loyal party members from independently evaluating the other platform. It’s an excellent way to get people to not vote. It’s a way to excuse unacceptable behavior within one’s own party.
Or it tells people that party loyalty is trash, that both parties are capable of good and evil and have good and bad candidates, regardless of the letter by their name.
Saying 'My political side is different, it is objectively better than the other' is the problem. The beneficiaries of the division are, as you probably know, the rich. Show me a democrat that doesn't take rich folks money to help their campaign.
I am immediately suspicious of any Both sides are the same messaging.
Do you think only the right is capable of electing and following bad political candidates?
If it is believed, all sorts of critical thinking gets pushed off to the side.
As I stated above, the 'my side is objectively better' rhetoric does that. Thinking that both sides are capable of good things and bad makes you think about and consider which policies each are pushing that's good and the ones that are bad. Staying dug into your side is what keeps you in an echo chamber.