Aside from in-person P2P, I feel a DEX has major censorship avenues as well, since most fiat payments go through KYCed payment processors that could be forced to censor
Discussion
That's unlikely unless you are forbidden to send money to your family and friends through mobile banks and online payment services. Reads like FUD.
How so?
If a nation makes Bitcoin illegal, KYCed, regulated payment apps will not be useful in purchasing Bitcoin, just as it won't work with exchanges either. You could still trade between each other but you wouldn't be able to buy anymore without leaving the country which most people can't and don't want to do.
You are pushing FUD.
I don't want to entertain your bullshit scenarios.
Have fun staying poor.