To the extent that I have an axe to grind with the big truck owners, it's because some (not all, and not always) these big truck drivers:
- Drive aggressively in urban areas - Blast their excessive lights which is a hazard for cars in front of them - Are intentionally disruptive with their giant horns
Put more plainly - assholes seem to be drawn to such things. But I don't think they create assholes.
But for sure, where I live, there are a lot of disruptive assholes with big trucks.
And I'm sure not all big truck owners tailgate. But when I am being tailgated, it is almost always by a big truck.
So it is I think many people shape their view of these vehicles. It could be a tiny percentage of the owners or large trucks, but we remember these interactions of bright lights, a cloud of coal, loud horns, and someone tailgating an inch behind us.
Depending on where I've lived in the area, I've experienced the japanese cars more, or the BMW's more. BMW's weren't as bad when I lived in a rich town, but any flavor of SUV was really bad. If I had to pick a brand which was particularly preferred by assholes then, it would have been Lexus.
The more accurate reading would be that the GP thinks that it's bad, and that's why they don't like it. But even still, the comment doesn't appear to contain blame, only bewilderment.