I have no idea why I'd ever abandon an entire CUISINE due to a bad experience. Most cuisines have more than one or two dishes or types of dishes.
I have, however, abandoned specific dishes over bad experiences.
1) Minestrone soup. It's not the fault of the soup, and I recognized that even at the time. I was a college kid working a summer job down in New York City. I would take a train in and out to get to the job. One day I was feeling under the weather, so I had the cafeteria minestrone soup for lunch - most of the time when my stomach bothered me back in the day, it was because I needed to consume more food, and the soup seemed light enough and so forth.
Well, let's just say I was mighty sick, and I would leave it at that but for the next part of the story. I got to leave work early and go back to Grand Central Station to catch a train home. (Mom knew she was going to pick me up, no car of my own.) I get on the train, scheduled to leave in 15 minutes. There was actually a bathroom on my train car. Little did I know they were LOCKED until the train was underway. Whatever bug I'd gotten that made me sick didn't care about the door being locked, shall we say.
I have not faced minestrone soup ever since. It was really embarrassing as other passengers considered boarding, too.
2) Peanut butter sandwiches. No, I am not allergic to peanuts. And when I was a young kid, I asked for peanut butter sandwiches every single school day for about 2.5 years. I liked other things, but they didn't lend themselves to school sandwiches. Mom would make me peanut butter, or peanut butter and butter, or peanut butter and jelly sandwiches all those days. Until one day I took a whiff of the thing in my lunch bag, and could NOT continue. The stuff smelled unrelentingly disgusting. I could not eat peanut butter in any shape or form for years afterwards. I'd be simply nauseous at the stench. I had a housemate in the 90s who would make his peanut butter sandwiches and leave the knife for spreading in the hot water of the sink... it drove me crazy!
I can now eat peanut butter. I like it in good quality dark chocolate Reese's Peanut Butter Cup makeovers, and I love peanuts in Thai cooking. I can even eat good quality peanut butter out of its jar. JUST DO NOT GIVE ME a peanut butter SANDWICH!!!!
3) Smoked silkworm cocoons. My uncle brought them up to my father, who, like me, tried just about everything once. I think they both pretended to like them, and when I showed up for the balance of the day, they got me to try them. I did try two. Frankly, I think they were smoked in some cesspit sewage. No more! They insisted I take the rest of them home with me as I'd enjoy them. I did take them home, but as I felt my compost corner wouldn't appreciate, they went out in the trash. I will try insects, but anything from that "smoked parentage" - nope. Never again.