Overton window has mostly moved left, but it has also expanded because we are more polarized than ever. The mainstream culture is definitely on the left, and I think that people on the left don't like that because you need to be constantly fighting the "oppressors", so it works against the left narrative to be dominant culture. However you can see this in movies, games, fashion, the mainstream media, the most used apps... of which Twitter is a good example and also an exception because it took one of the richest people to lose money on buying it in order to show how biased it was. That said, we could be seeing a slow return to the center which only recently started, although I can't say just yet.
I'm a centrist and try to stay in the middle because usually that's where solutions are. Whenever political extremes get their way, it tends to go wrong. Case in point is SF. It's not just gender identity politics or allowing people to live outside on the streets, it's also the attitude towards crime, the prioritization of climate change over everything else (while rejecting nuclear energy), and the tendency to control businesses which was evident throughout the pandemic as many small businesses struggled.
Sorry to hear about your mother. I do wonder why you would let her even experience that for a day. Maybe you didn't know, and you don't need to explain, but the left's position here is to think housing is the solution, when I think there is a big factor of families failing to take care of their loved ones and then demanding government pick up the pieces.