I live in a very walkable neighborhood near lots of public transit.
Yesterday someone was shot in the head two floors up. A month ago I watched a racially charged conflict that only didn't end with a stabbing because a dude couldn't find anything appropriate in the unoccupied security desk. A week ago I witnessed a charged situation with a couple of dozen people at a bus stop. Someone was murdered on a bus at 11pm two blocks away over who got a cigarette on the floor. A friend was visiting me and someone got stabbed at the bus stop she used 45 minutes after she passed through.
There are exactly 0 units available in my building appropriate for a family of 4 unless you really aspire to live packed in like sardines, the units you could do so which still don't have much space in them go for significantly more than a 6 bedroom house on a half acre within a few miles.
What will happen if left-wing idealists try to force city density and public transit on people is a hard right wing turn when the consequences of one party trying to take freedoms away for idealistic reasons becomes a bigger burden than the consequences of the freedoms the other party wants to take away.
I really don't care about my own safety, but when it comes time for a family I would never subject any of them to the safety nightmare which is high density public-transit heavy living.
When the same people fighting to abolish the car are fighting to abolish the police, I don't think there's going to be much hope for either happening.