Most people who eat them think soy and wheat gluten are good foods given it has been shoved in our brains for so long. Back when I was veg, we actually called that company about GMO soy and they called us back and answered our questions and seemed to care about the quality of their product.
People who eat alot of the foods we eschew aren't stupid or reckless- they literally just get their information about what is good from a different source. Back when I was a veg I had all sorts of info on why soy is so good, and why say, bacon is not. And a lot of people swapped SAD for soy foods and saw their health improve.
I'm not so sure certain brands of meat hot dogs are that much better than a soy dog. I've seen commercial hog operations. If we are what we eat, I'm not sure what those poor hogs are.
So I dunno- I would not eat them ever again, nor would I eat a Ball Park frank. But I think vegetarianism is a reaction to SAD and avoidance of the very real issue of factory farmed meats. It's not that far off in some ways from primal. The fake meats aren't much different from bizarre primal baked goods.
Most of the vegetarians that do it for health don't like the fake meats, but do it for convenience or novelty. I don't think they eat a soy dog at a BBQand think it is the epitome of health, I think they find it a good alternative to meat that is raised in deplorable conditions and fed god knows what. I mean, primal people aren't eating hot dogs either... they are having a grass fed steak.