Lots of poor people actually need those vehicles. They would just suffer from having to pay the taxes.
The other half drive sedans.
(1) https://media.ford.com/content/dam/fordmedia/North%20America...
> Curb weight is an irrelevant number, interesting only to calculate payload (which many ignore, albeit at their peril).
Not just their peril, also any road users or others nearby. If you've ever seen an overloaded pickup, they tend to drift around their lane as all the extra weight in the back reduces the steering authority on the front. Double so if it's pulling a badly loaded trailer that puts a lot of weight on the hitch