A lot of quorn isn't vegan. Plus a lot of vegans and vegetarians (ime) are not bothered about fake meat.
But we would like to be able to have some options that fit with the plant based diet. A huge percentage of the world population are vegetarians or plant based. It isn't a fad, nor a phase. Western diets are not the best, this is not news. But even those who don't eat animal products crave junk food or a treat from time to time.
I currently carry a supply of nuts in the event of getting 'caught out' (ie: every one else goes for something to eat and I am also hungry). Salad doesn't carry as well, sadly.
Of course, people can be offended about my diet choices, or my rights as a consumer but I don't see the point at all. What a waste of energy. Being plant based isn't contagious. It doesn't hurt anyone, in fact quite the opposite. IME, thé people who seem to object to someone's moral choices are those who feel inferior or threatened, for whatever reason. If they educated themselves, then they would understand that inclusion isn't a bad thing.
It's just food, people. And for the most part, good food at that.
I am plant based rather than a strict vegan, but I do it for health reasons, environmental impact and concerns over the dairy trade. Our plastic consumption goes down tremendously when we are not buying meat and cheese (which my family do eat). And yes, we are a crunchy family. We can't save the world ourselves, but we can make the best choices for us, based on the options available to us, in accordance with our circumstances, and we do use our consumer power where possible. And we are lucky enough to be able to make the choices that we can.