You make a good point here. Plus, there's more and less healthy ways of being thick, depending on what you eat.
I usually prefer chubby women to thin ones, and have started being into chubby men as well but only if they're also tall (before, I preferred all men to be thin or athletic). Chubby women I find to look more sensual and feminine than thin ones, chubby tall men seem to look both strong and gentle and a lot of body to hold and grab for me, don't know how to put it into better words. And with chubby people in general, there's just more to cuddle and hug and less hard bones getting in the way. To give you a clue what I mean, Queen Latifah looks very attractive for me but she's on the thin extreme of what I like.
Now there is this other side of fatphobia - some people think my preference is gross and pervert, and some people assume I can't possibly find thick people attractive, or that I just lack the self-confidence to hit on thin people. In this respect, thin vain trophy wives are the worst, as well as guys trying to impress me by boasting about their "beautiful thin wives". And beautiful thick people think I'm telling lies to be nice to them when I say they're attractive, or they just can't believe anyone may find them attractive. The saddest thing for me is when I see a very beautiful lady being self-conscious about her body and feeling so depressed about it and feeling like she's worth nothing.
I also find the societal pressure extreme, though of course I'm a bit biased here. Kate Winslet gained a couple of pounds a few years ago and I was like - wow she starts looking good and I started to find her attractive and thought, hm, maybe 20 to 50 pounds more and she'll look great. And you know how the media reacted, and she lost weight again and the media applauded that. Now of course it's none of my business how she looks, it's up to her, but it was kinda disappointing for me...
I prefer myself to be thin, though. I gained 40 pounds while being on testosterrone and have lost them again since off (1 year ago). I never had had so much weight before and always used to be thin. It was weird, testosterone decreased my gender dysphoria, but at the same time, gaining weight caused me a different body dysphoria. Since losing weight, I've also remarked people treat me better, or maybe it's because I feel better about my body now. I'll probably go back on t in a couple of months as I fear my body will turn too female over time otherwise. I hope I won't gain that much weight again. As I have pre-diabetes, I better remain thin anyway to avoid slipping into diabetes type 2. However, I wonder why I want myself to be thin if I prefer thick people. Maybe because I'm very small, and small chubby guys don't work for me, or because I have some unconscious, internalized fatphobia (which I don't hope, but you never know).