> Some seem to sincerely believe that renewed immigration law enforcement is morally evil.

No one believes that, this is a strawman. Notice how there were no large protests, no continual protests, and no widespread outrage before ICE's tactics were changed and a bunch of insurrectionists were hired? Yes, you do notice that "except for a few years recently".

Is there anything that may have changed in the past few years that may have caused people to be against ICE?