@evacide
10 years ago at Trump 1.0 protests was the first time I saw the "Abolish ICE" slogan on signs. I didn't understand, so I read an immigration attorney's blog and the subject and thought, "Oh, okay, that makes sense. Abolish ICE." And I was not what you'd call a leftist, just vehemently anti-Trump in general. But yes, it definitely wasn't a mainstream opinion back then.
It sure is now! Besides this, at protests we get all kinds of education about pre-existing problems with ICE.