Exactly. Just like they aren’t illegal immigrants, but rather illegal aliens.
The word “immigrant” is defined as “a person who comes to live permanently in a foreign country.”
Sneaking in here illegally to deal drugs, practice human trafficking, or earn money to send home is not immigration. Voting illegally is not immigration. Stomping on the U.S. flag is not immigration. Refusing to learn English is not immigration.
When we use the term “illegal immigrant”, we feed the Left’s “Waaah! You Hate Immigrants!” meme and we should all refuse to do that.