What’s going on with Trump wanting to destroy national parks?

I’ve been hearing a lot of talk of Trump wanting to “destroy America’s national parks” and potentially sell them off to billionaires. I’ve seen the photos of the US flag hanging upside down in several national parks such as Yosemite, and have heard the news of national parks being severely understaffed, but I still do not have the full context as to what Trump is really trying to do to the US national parks and what his end goal is.

I’m also hearing conflicted viewpoints that he doesn’t want to actually to do anything to the parks, and that he couldn’t if he wanted to anyways since the parks are protected. But, if he really is trying to harm/change the status quo of national parks and has the power to, I’m curious as to why, since it seems to have bipartisan appreciation from both republicans and democrats, and is widely regarded as one of the best parts of America. Whats going on?

Example video: https://www.tiktok.com/t/ZP822CHMH/ (comments)