I didn’t interpret “some vegans” as “all vegans.” (But I see that you interpreted my “insulting vegans” as “insulting all vegans.”)
The point is: Why did you mention any vegans? You could just as easily have said, “certain ‘fundie’ meat-eaters could take a lesson in manners.” But that would have likely seemed shrill to you and out of place, seeing as this is a post about Muslims and Ramadan.