I'm not american and don't live in the states but even I remember this: https://www.americanimmigrationcouncil.org/blog/black-lives-matter-ice/
According to a leaked internal government document, the Department of Homeland Security (DHS) deployed more than 700 personnel in the Washington, D.C. area alone. Most of the officers were from U.S. Customs and Border Protection (CBP) and Immigration and Customs Enforcement (ICE). They provided “support” to other federal law enforcement bodies responding to protests in the city and near the White House.
See also, from 2018: https://www.migrationpolicy.org/journal/policy-beat/once-relatively-obscure-ice-becomes-lightning-rod-immigration-debate
While some of the sharpest liberal voices calling for ICE’s abolition have calmed, in part amid a recognition by leading Democratic strategists that the campaign could backfire, the agency has clearly been thrust into the center of a polarized national narrative in an unprecedented way. Attacked in some circles, the agency is being lionized elsewhere. Vice President Mike Pence recently told ICE agents they were “American heroes.” And eager to capitalize on a wedge issue important to its base, the White House on August 20 held a “Salute to the Heroes” of ICE and U.S. Customs and Border Protection, which like ICE is a DHS agency.
...
Thus, the issue turned into a litmus test for many Democratic candidates. Possible presidential contenders took up the cry next: first, Senators Kirsten Gillibrand (NY) and Elizabeth Warren (MA), and eventually Bernie Sanders (VT), who initially refused to call for ICE’s dissolution. Gillibrand also seemed to conflate ICE’s responsibilities with those of CBP, saying, “When we flip the House and flip the Senate, I think the first thing we should do is deal with the children who are being separated from their families at the border. I think we should get rid of ICE.”
And the pushback on Obama for his enforcement: https://www.aclu.org/news/immigrants-rights/border-patrol-was-monstrous-under-obama-imagine
I'm also ancient and remember when ICE was created, and how scary the homeland security act was (and is) and the protests against it. It's absolutely wild how normalized all that stuff is now.