He almost certainly won't be able to make that happen, but it'd be a terrible idea. If birthright citizenship were ended, the first thing the corpos would do is replace as many US Citizen workers as they could with Immigrants, and increase the amount of immigrants until they could get a workforce of permanent non-citizens who cannot ever vote.
Smart people who hate immigration or who love democracy would realize that getting rid of birthright citizenship is a VERY bad thing. Our oligarchy would weaponize it real quick. The first people to be made obsolete would be the working class, including the White working class, ironically.