In the past, your whole community needed to feel that change was necessary otherwise people would just accept the current situation. I argue anti-vax wouldn't exist if there wasn't a meeting place for people with vaccine related anxiety to meet. That place is the internet. And we see how much of an impact it has had on vaccination rates.
Regarding housing issues, to me the solution is simple but untenable to most western cultures. Limit population growth to natural growth unless the vacancy rate of housing is 3% of existing supply. Unfortunately, this would require reducing immigration which would mean wages would need to rise for all workers.
The part I don't understand is how government don't see wage rises as a positive thing. Income taxes make up the vast majority of the tax base in western countries and yet the government seems focused solely on corporate interests. Any country that targets high levels of immigration during a housing crisis must be corrupt.