I'm honestly, honestly convinced that the villification of centrism and liberalism on both leftist and right political ideology is designed to increase disagreement and prevent compromise on political issues, likely for people to focus on race or politics over class issues, or to prevent good faith discussion of issues to prevent social progress.
I know, without a doubt this will be voted down, but I'm actually asking you to think about this critically before both political extremes go down the authoritarian route and it becomes too late to actually unify people to rationale and true dialectics.