I wasn't basing the restaurant scenario on immigration, I was just giving an example of a minority exerting their extremist views on the rest of us
now you can be a knob and call me bigoted if you want to, that is your prerogative, but it does not excuse you from your ignorance
below are just a couple of things that, according to you, "is extremely unlikely" and "hardly something to be concerned about"
https://www.perthnow.com.au/business/agriculture/vegan-activists-force-victorian-goat-cafe-closure-ng-b881161072z
https://www.heraldsun.com.au/news/national/vegan-activists-protest-inside-melbourne-steakhouse-credit-melbourne-cow-save-via-storyful/video/b39806f49b9ae274054cbefb424faf44
https://www.weforum.org/agenda/2018/07/vegans-in-france-are-using-extreme-tactics-to-deter-meat-eating/
https://www.dailymail.co.uk/sciencetech/article-6805151/Stop-eating-meat-save-planet-report-suggests.html
and the list goes on and on