Dudes claiming they are "old stock" or "heritage" Americans. They'll even call other white people who's ancestors weren't here before the Civil War "ellis islanders" and invaders.
As someone who's ancestry has partially been here since the 1690s.. it's a crock of shit and silly as fuck.
Since 2021, Tucker Carlson has used the phrase "legacy americans" to refer to white people. He uses this phrase to promote "the great replacement" white supremacist conspiracy theory.
Just like in software development where legacy code is obsolete crap that is a pain in the ass to deal with but that you have to put up with because replacing it would be too difficult.