The construction of rental housing has stalled for a while now. This is due to builders preferring to build either office space or condos. So, there is a need to boost the construction of rental housing.

Poilievre's ideas seem to be of the carrot and stick mentality, with an emphasis on the stick. I don't see that as being a solution to getting more rental housing built. Instead, it likely would end up further frustrating the construction of rental housing.

Yes, it seems all that gets built these days are 5000 SQ ft detached homes with 2-3 levels and quartz/marble kitchen counters, glass shower doors, etc.

Why would a developer build a home they can sell for $100,000 profit when they can build a home they can sell for $300,000 profit?

There needs to be incentives for building cheaper houses, or disincentives for building expensive homes.