There's a clear difference in the premises behind the thinking of the "right" vs. the "left". One side sees "evil officers acting too aggressively towards fellow humans", and the other side sees "patriotic police catching criminal aliens, and leftists attacking the police".
To the eventual detriment of the latter, I expect. There are plenty of people currently on the "evil officers" side who would be much more willing to support the mass deportation effort if the ICE officers were calm, unmasked, not using violent SWAT tactics just to apprehend an undocumented immigrant. This intentional violence turns away a lot of people who'd otherwise be sympathetic to the goals.
Those are the two ways of thinking I've noticed.