Sure, food is a way of sharing cultures and connecting to some common history -- I agree with you that these are all means of self-expression and connection --

Sure, food is a way of sharing cultures and connecting to some common history -- I agree with you that these are all means of self-expression and connection -- but I'm not really interested in this mode of expression. And for most other parts of life, that's a legitimate position and you're allowed to opt out. Don't like musicals? Don't watch them. There are lots of things from which people derive emotional, cultural, community and individual value -- and where other people choose not to participate, and that's broadly seen as fine. But food is in a different, much more oppressive position: I'm not allowed to opt out. I am forced to participate, to some extent by cultural forces, and more broadly by the primitive cravings of my body. And the fact that I don't have much choice about participation is a fact that I do not like.