The crisis is actually relatively severe post-COVID overcrowding (regardless of race) combined with understaffing and the park service being forced to operate on a shoestring budget. Congress has also gone on to establish far too many of them IMO and it's kind of worked to take the shine off the title of being one; like some of them are a staight up joke comparatively speaking. A certified National Park should have geological features, natural attractions and visual scenery (or a collection thereof) that can be found virtually nowhere else in the country, if not the western hemisphere of the world or even the entire planet.
All this political nonsense aside: However unlikely it is that you return to the United States, the national parks are where you should go (fuck the cities). It's sort of weird but America actually 'invented' the idea of and was the first country in the world to establish national parks. I find this something to be proud of and one of those things that "Make America Great",
@panem-et-circenses. It started with the all-time OG Yellowstone in 1872.
Now, that's a fucking legit National Park. Likewise, Grand Canyon NP, Legit. Death Valley NP, Legit (yup, 100%). Sequoia NP, Legit. Redwood NP, Legit. These are truly unique places that are worth seeing and experiencing, IMO. I've never been to Yosemite myself, opted for Sequioa instead (which has five of the top ten largest trees by volume to be found on earth, including #1); Redwood up in Northern Cali has the tallest.