There is a tremendous amount of housing, it’s just not where people want to live. The housing crisis should really be reframed as an urban housing crisis.
I don’t think copious jobs are the reason, because we don’t really know that. People only think that, so it drives they’re push to the urban environment.
Also, who are the ones complaining about lack of housing? I’d be willing to guess that it’s predominantly people who can afford housing just fine, they just can’t afford housing where they want to live.
RV Parks have very specific requirements which usually disqualify Vans. Also, RV parks aren't usually a community of youngish professionals I was looking for. I think they tilt towards retirees and/or groups not in the professions.