I know this is going to. be contentious, but US mainstream discourse seems to have completely eliminated the distinction between illegal and legal immigration, in the last 10 years. Everyone seems to be a "migrant".
So, the idea of illegal immigration as a vice worth cracking down on and punishing has not been consistently applied by the people publicly condemning it (like this current administration), meaning there is a very real sense in which the distinction between illegal and legal immigration is not real.