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You’re going to have to find a different line of reasoning. There’s enough people out there that don’t care enough about other humans that might be slightly different than themselves. You’re never going to convince them that a bunch of chickens deserve empathy when they don’t even have empathy for their fellow (hu)man.
It’s simply not possible to drop housing prices significantly until we get a reasonable supply. Right now (and until the end of the decade) demand is predicted to exceed supply of new housing by about 4:1 (i.e. we need to build about 4x as many new units as we currently are).
There are some mechanisms to reduce some demand like vacant housing tax, increased taxes on second+ properties, and banning non resident purchases, but it still comes back to supply and demand.
In theory, once supply exceeds demand, house prices should start to fall. There really isn’t any other sustainable mechanism to significantly reduce housing prices until that point. Government owned and subsidized housing is one way that we have attempted in the past, and I think it’s a good idea, but it won’t actually reduce prices except for those lucky enough to get one of these units.
Each of the parties has a plan to increase housing supply, targeting different aspects of the supply chain. It’s a good first step, and realistically all that they can do in a single term.