And people wonder where the Great Replacement conspiracy theory came from! (https://www.splcenter.org/hatewatch/2022/05/17/racist-great-replacement-conspiracy-theory-explained)
Even if you're right about what fraction of white people in the United States both believe they have white power and wish to maintain it, I don't see how this post is remotely helpful compared to a "look, demographics are changing, but it's going to be good for everyone because the changing demographics help keep the country strong". Or something.
You're writing it like "hey white people, your worst nightmares are coming true!" I think you're wrong about how strong the sentiment is, but if you think you're right, why on earth do you think this is a good idea?