---"Why should people be able to block where other people want to live?"
If people want to live at your home or in your backyard, feel free to let them live there. I'm all for people's ability to use their property how they like it and I don't want bureaucrats to stop you from subdividing YOUR property. But don't force it on others, who don't want it. Have you already emptied a few of your rooms in your house and offered it on some rent site? (And don't say "no", as "It's no longer a personal choice")
Also, according to your polls and your statements, you believe that the majority are in favor of bigger houses and upzoning, so there shouldn't be a problem to find people who will do the same like you, right?
---"No one is making you or other people live in a high density area. "
---"It's no longer a personal choice"
Sounds like a contradiction.
---"??? Voter fraud is very rare"
My mistake, I mistook the term "Voter Farm" for another English political term. What I meant was that if you have a group of people with very similar life situations, then they are more likely to find common ground and improve their life. But if a party forces in another group that has a completely different life, then that party will be able to manipulate that (now dependent) second group and push laws against the former group through divide&conquer tactics.
---"Upzoning is the opposite of a cap on demand."
There must be a cap on demand otherwise you will never stop the growth of demand.
---"Also, population is not growing to infinity, so there isn't infinite demand for housing."
We are nearly 8 billion people on earth and the coastal areas of the US are quite nice...
---"NIMBY blocking of housing through the last several decades has been enough to cause a massive housing prices and homelessness crisis in the U.S."
Really? Decades? All NIMBY's fault?
Let's say 5 decades. What was the population of the US like 50 years ago, in 1972? It was 210 million.
Now the population of the US is 332 million.
That's a 122 million increase in 50 years. (The birthrate in the US since 1972 is below replacement levels.)
So it's all NIMBY's fault that some magically appearing 122 million people raised prices? It can't be that there are 122 million additional people, who now all have additional demand for housing. (Don't forget: Price is driven by demand and supply.)
Are you really blaming some regular folks, who don't want stuff built in their backyards for increased housing prices? And not maybe the politicians, who did the same "big number = good" game as you are playing, who then - due to their policies - allowed demand to grow by 50 percent, despite below-replacement birthrates? And you are blaming the little guy? It feels like you are hating the regular folks quite a lot, if you blame them for that problem as if it was their responsibility to build 122 million housing units, when they simply want to be left alone and live a peaceful life.
That's why I think you'd end up with countless skyscrapers of social housing. Cause you think just like the politicians, who caused all of that. It's the "big number = good" mentality. It's the "I don't care about the consequences of my actions and will simply blame the little guy for my errors" mentality. You might be solving one problem in the now, but you will be causing a new massive problem a few decades in the future, especially as you are mistaken about the current problems and what caused them.
Please remember that we are talking about people.
Not Sims in Sim City.
When you are saying "It's no longer a personal choice", you sound like a tyrant, who's willing to let his people do the sacrifices, just so that your numbers can go up.