Unlikely, seeing as the average age of death in the United States is over 75 and vegetarians comprise only about 3% of the US population (with vegans at less than 1%).
The "anti-vegan" stuff you see is probably not a response to veganism as a practice; it's most likely a response to how quick vegans are to make hilariously pretentious statements (like the one you just made).
People don't like annoying vegans and a lot of them are so that's where the hate comes from. I don't think anyone really hates the ones that keep it to themselves and don't pass judgment.
The ones that think it's okay to put their carnivorous pets on vegan diets are the ones that really piss me off
"Eat other things" is a bit of an ironic directive coming from someone who is trying to convince me to limit what I eat. Just because I enjoy filet mignons does not mean that they are all I eat (how rich one would have to be...). The point of the joke was that on occasion I do enjoy eating delicacies that are meat (filet mignon being my favorite among them), and that I'm not interested in sacrificing those meals.
The only one saying ridiculous things here is you, and it's these kinds of myopic pretenses that vegans are so often mocked for. Someone makes a joke and then vegans decide to wage war on behalf of all the Earth's pretentious plantlife.