You should consider how allowing millions of illegal immigrants impacts legal residents next time you vote then.
The legal immigrants have it the worst --- they're the ones who got in legitimately, that already being a struggle as it is, only to be cheated by all the ones who didn't.
This has nothing to do with the treatment of the current people residing in the US by ICE, regardless of status.
You should reconsider it.
You would have to include ALL actions, including ICE troopers shooting dead US citizens too. You can not merely confine it to "this is what they do in theory"; you need to look at what they do in practice.