This is sad. Going off season is excellent advice. Or finding less crowed parks. Last summer I visited several CA parks, being there for unrelated reasons. Yosemite, is that a shopping center. Sequoia wasn't much better. But Kings Canyon not too bad. Redwoods, we stayed at a state park south of there, was fine. I could name a couple others that were ok for camping/hiking. But the big name parks, and the big name sights in them, it's not working. Need some new ideas. Probably shouldn't talk about Yosemite since I didn't see much of it. But if you're going to have trams anyway, and there's plenty of acreage there, why not move the campgrounds and non historic hotels out of the valley. Plenty of room for campgrounds and hotels out of the valley. Get the cars out if it's going to be a tram site.
I was at Yosemite in 1972, and there was a bit of crowding back then. The trams though were quite convenient. The backcountry trails were not crowded, as well as the trails climbing out of the valley.