It's quite normal....
...to have laws against doing things to other people - including your own kids.
You can't seriously see this as being the same thing as being free to "eat the food of your choice". I'm not aware of any new law preventing you from circumcising yourself - it's chopping off bits of other people which is frowned-upon.
As for this survey where 71% of women preferred circumcised men, I notice you don't give a reference to it and I find that suspicious. At the least, I suspect it was conducted within a society where circumcised men are the majority, so the women are simply preferring the familiar to the unfamiliar.
