There's "wanting to protect the value of your home" and there's "I'm going to vote NIMBY/BANANA and screw everybody else out of a place to live because I decide

There's "wanting to protect the value of your home" and there's "I'm going to vote NIMBY/BANANA and screw everybody else out of a place to live because I decided to 'invest' all my money in this house and expect it to be a nest egg that catapults me out of the working class." It sounds like the parent is in the latter category. Is the problem "losing value in my house" or "not realizing astronomical gains like my peers"? And if building much-needed housing does decrease your house's value then hey, maybe your house was overvalued at the price you paid and you made a bad 'investment'. Why punish everyone else and artificially strangle housing supply to cover your bad decision?