I wish I could find it, but I can’t remember which research paper I came across it for; however there is a routine survey and report that measures how Americans feel about core values over time with no changes in the questions, and what it’s shown is that conservatives have moved a little bit more right of centre on most issues, but that liberals have moved almost entirely to the far left.

The thing is, the whole point of liberalism is to consistently move the needle of progress. So it baffles me people fail to realize that today’s “normal” leftist ideologies a decade ago were those people you’re mentioning. But to someone who is still fighting those ideals and hasn’t changed their stance at all, they are still radical ideals.