That works a lot less well arguing against someone who is claiming to be from that culture.
I've more than once seen people accused of not really being whatever they claim to be. "You're wrong about your culture's traditional practices" isn't a legal move, but "you're obviously an imposter" is.
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
Notes for future OT posters:
1. Please add the 'open_thread' tag.
2. Check if there is an active Open Thread before posting a new one.
3. Open Threads should be posted in Discussion, and not Main.
4. Open Threads should start on Monday, and end on Sunday.