Misinformation and disinformation does exactly that right? It uses ideological lines to create polarization.

So, let’s say a democratic country favors pro-choice policies, but then has an influx of immigrants who are anti-abortion, and now that population is greater. That’s a change of values because the population shifted to a majority opinion which favors a different view point.

If a country has an idealized view of how it wants to be, then I think it’s fair to expect immigrants to integrate and assimilate. I don’t think that has anything to do with xenophobia or excluding different cultures, as long as the core values of a country are maintained. For example, if a country wants to maintain a democratic socialist society, and a greater population of capitalists immigrate to it, then I think that socialist society would want to restrict immigration as well.

None of that is bigoted, it’s just pointing out how democracies are fragile.