Every non-citizen I know keeps their head down and doesn't express their personal opinions on political matters (particularly relating to ICE) because they don't want to jeopardize their visa. It would be strange and kinda stupid for a foreign programmer on an H1B to oppose a contract with ICE because they do eventually want to get that Green Card and eventually citizenship, and they know who holds the power in that relationship.
(It's also amusing to see that sometimes shift when they get their citizenship; I had a Japanese classmate in college who was on first a student visa, then an H1B, then a green card for about 15 years. He had zero political opinions for the whole time I knew him. As soon as he got his citizenship, he's active in local politics. It's more about urban planning, transit, and YIMBY efforts than immigration, though.)