You just exaggerated one perspective to "all" Monero Bros.

Not really sure where those people come from. It's an ancient believe that once you bought XMR with KYC you won't get into trouble by the tax man selling it on a regulated CEX.

But soon there will be no more CEX for Monero, so this is unlikely in your favour.

All Monero will be treated like no-KYC BTC.

For Bitcoiners on the other hand I think it's better to have a no-KYC stack and a small KYC stack separated at all times.