> If you care to question any aspect of something that comprises part of someone's identity, then it can easily be perceived as a personal attack on that individual

I don't think it's healthy conversation to "question" what someone [you have just met] is saying in any circumstances.

Questioning without having a developed background and context is a polite way of calling them a liar, isn't it?

"Oh, I haven't experienced that" is less confrontational - you are not expected to have experienced it if you don't hold the same identity.