Don't call immigrants "illegal aliens."
Chicago mayor, Brandon Johnson, did a great job responding when asked about "illegal aliens" in his city:

“We don’t have illegal aliens. The legal term for my people were slaves. You want me to use that term, too? So, look, let’s just get the language right. We are talking about undocumented individuals that are human beings. The last thing I’m going to do is accept that type of racist, nasty language to describe human beings.”

https://www.msnbc.com/top-stories/latest/brandon-illegal-alien-chicago-rcna240126