AITA for rescinding my offer to accommodate special nutritional needs for people at dinner?

I have fifteen people coming to my house for Christmas Eve dinner, 17 people total. I love cooking and entertaining and in the past have worked really hard to be kind to everyone with the food and make sure there's something for everyone. So I communicated to everyone, family, their various partners, long-term friends and a random neighbor to let me know of any allergies or special accommodations when it comes to food.

What the Hell has gotten into everybody these days with food??!!! It's like the new religion, I swear to God. As of this morning, I got yet one more request. Here is a list of the special requests, I shit you not.

• Vegan- and very passionate about animal rights activism

• Gluten free for someone with Hashimoto thyroid disease

*Paleo for a body builder

*Someone asking if the meat will be sourced locally and wants to make sure the animal is pastured

• SCD as prescribed by their naturopathic doctor. I had never even heard of this, had to check it up and still don't understand the parameters.

I talked to my husband this morning and we're throwing up our hands. There's an extra kitchenette in our basement and another one in a travel trailer out back that people can do extra food prep. But I'll be damned if I'm going to spread myself that thin.

I posted the menu which should have a least a few things everyone could eat on Facebook this morning, tagged everyone and told them if they need any special dishes that they could make them in the extra kitchens. I immediately get push back, that I had said I'd accommodate everyone, that these special dishes would benefit everyone, ethics, blah blah blah. How much of an asshole am I?