I'm a player who prefers realistic over anything, I even join semi-realistic ones sometimes if there isn't much realistic groups around. Although, as it's stated above your character is 5% boar, even with that 5% they have every right to decline your request to join their group. If they advertised their group as realistic you should of realised, that 5% of your character would not get you into that group. At least the person had the decency to apologise for declining your request but yet you call them names. Perhaps you should of taken a nicer approach to this.
I know what it's like not to be accepted into role plays you want too, my fursona Dorian is a Barbary Lion but he's grey. Although I may role play him as realistic and like any ordinary lion, he is what's called unrealistic because when you do ever get a grey lion? You don't. You have to understand some people have different opinions on what realistic is. You don't need to be rude about it or call them stupid for declining you, everyone has the right to say no. All you had to do was say it was ok and be on your way, looking for a new role play. You didn't need to proceed in calling them names but good luck with any other role plays.