He addresses this point when he talks about how the most popular car 40 years ago was the Ford Escort.
Trucks are much nicer than they were 40 years ago and our culture has changed as a result. 40 years ago few people would have considered driving a truck, they were all basically farm trucks with limited creature comforts. Now they are luxury vehicles.
The point is that marketing and incentives matter. Trucks are not objectively better, they are subjectively preferred among certain demographics in the US because of marketing. He addresses very clearly that manufacturers make more money selling SUVs due to regulation - so it tracks that those are the vehicles pushed by manufacturers
There are also an increasing number of SUVs and automatic transmission vehicles on European roads compared to a decade or two ago...