You don't have to humor every opinion, nor rebut them, and it's quite okay to tell people that you don't care about their opinions at all. They can go seethe and sulk somewhere else.

It's also okay to publicly laugh at people who demand the world revolve around them, or insist that you can't wear a certain hat or eat a certain food or travel to a certain place for fun.

Be a little less afraid of opinions.

edit: and maybe a little more vicious in your own defense, lest this all get worse.