Having worked in a posh restaurant I learned a few things about chefs and restaurants:
1) Almost every chef is very bitchy about TV chefs. Many TV "chefs" are actually "cooks".
2) The hygiene levels in a catering environment are awful. Ever ordered a sandwich in a restaurant, or even a sandwich shop? Well, that cheese and pickle sandwich was cut with the same knife used to cut a tuna and sweetcorn sandwich 2 minutes earlier, then wiped with a cloth (sometimes not even that!)
3) To be a chef you can't be particularly squeemish about any foods you cook. If you are going to offer steak on the menu, then you should know what steak tastes like.
4) Many are complete to**ers.
5) Most (although not all) are very quick to lay the blame on the first person who comes to hand, even when it is something that couldn't be anyone else's fault but their own.
I suspect that Ramsay would hate people who refuse to eat any one particular thing. I don't eat seafood, so he would probably be angry that I would tell him to stick his tuna steak up his a**e.
However, I would be 100% behind him if he had said "I hate people who say they are vegetarian but eat fish and/or chicken".