Many who hate musk because he is a Nazi actually would like the US to allow more immigration; to provide a path for immigrants already established to become 'legal'. At the very least not treat them inhumanly. It's only ideological coincident because these concepts are the logical, are aligned with decent values and sane.
Musk and his ilk want 'illegals' removed, and so his hypocrisy should be called out - especially since this backwards thinking comes from the lack of empathy and recognition that immigrants are people just like everyone else with aspirations, capabilities, contributions - so much like everyone else that in fact musk is one of them.

Surely that's irrelevant compared to the public figure featured in the story who hates immigration and supports sending illegal immigrants home?

Whether or not I, just some guy who can infer from statistics that immigration is factually a net positive, does not detract from a powerful guy whose personal convictions outweigh reality behaving like a hypocrite.

Let's not let the benefits of migration to every party get in the way of the guy who did the thing he said no one should do dodge the punishment he said everyone should get.