Marketing and vehicle regulations have made it more profitable for car manufacturers in North America to sell trucks and large SUVs as "family cars", so over the last 30+ years the industry has been pushing them hard. Trucks and SUVs are classified as light trucks, which have different fuel economy requirements which are more laxed than those for passenger cars. Small cars are being marketed out.

So of course it boils down to corporate greed chasing more money as well as garbage regulations. That's why the Ford f150 is almost always the best selling vehicle in the US.

Not Just Bikes has a few videos on the topic.

No, it's actually hard to find subcompacts these days. Which sucks as someone who prefers them for reasons beyond price. I like having a tiny, super maneuverable vehicle. I can u turn easily, parallel park without problems, and even see children and wheelchair users crossing the street in front of me

No small cars, no small asses.