If you want to convince people to become vegan,--or even vegetarian--you need to be inviting to them. The same goes for any political or religious movement; if you actively alienate people and tell them that they aren't welcome before they can even try to join, then they likely never will.
I was a Mormon missionary. Yeah, it's a cult. And you know how they recruited new cult members? By being extra loving and kind to people that were considering joining (and also hiding the really weird shit, like how they believe they eventually become gods themselves). It's called "love bombing". Mormons are absolutely, 100% convinced that they have the only correct religion, and that all other religions are false. But they will be your best friend ever while they're trying to lure you in.
Start by presenting options that are as appealing as options that have animal products and cost less than animal products. Make equivalents that have similar flavors and textures so that people aren't experiencing a significant shift when they're eating, because food is often very emotional for people. (...Which you demonstrate so aptly in your activism against animals as food; it's an emotional issue for you, even if it has intellectual aspects.) You need to create conditions such that people can eat less meat, and titer down their consumption, without attempting to shame them while they reduce their consumption.
There's a restaurant in Atlanta that I highly recommend called La Semilla; they do Cuban food, and the entire restaurant is vegan. They understand that if you want most people to even consider being vegan, they have to be presented with food that looks, smells, and tastes appealing, and it must be presented in a welcoming atmosphere. They aren't loud or angry in their message; they're doing good food and being a good example. Every meal that a non-vegan eats there is one less meal made with animal products, and that, sir, is progress. And it's more progress than they'd see if they told everyone that wasn't already a vegan to fuck off and get the fuck out of their restaurant.
Vegan is more than a diet so I get their shitting response. A good reason I always used plant-based and just advocated for people to eat more veg and less meat/dairy.
Great way to lose your current clientele that doesn't support murder, not attract other clientele who'd rather eat McDonald's, and still go out of business while giving away your spine.
Ew, imagine being vegan, no thanks. Not murdering for selfish reasons sounds awful. My pleasure is the most important thing there is, I'm not going to let some beta cuck emotion like empathy fuck that up for me.
Yeah I often don't pay. I slit animal's throats and butcher them myself if sausage/ground meat is the intent. Real butcher i pay if I want nicely cut steaks.