I think a recent court decision in CA determined that unless the website is a front for a brick & mortar real world place, they're not subject to the CA version of those laws (Unruh). How that would play with the ADA rules, I don't know, but this article mentions both. I'm not sure this issue is at all settled nationwide, but my take is bringing that lawsuit in CA won't get you very far.

https://www.natlawreview.com/article/california-court-appeal...

Kind of a shame, because it was my first thought too--losing the accessibility team and then removing all the accessible clients definitely won't make Musk many friends among disability advocates.