the argument of "you can just buy non-KYC" is horseshit for a number of reasons
but the two that stick out are:
one.
most people DON'T buy non-KYC. so while bitcoin has a lot of on chain activity, most of it is kyced. your non-KYCed utxos stick out for CA and you are hiding in a VASTLY smaller anonset.
this problem is solved by the fungibility offered in Monero. spent kyced coins are indistinguishable from others
two
most people who have a non-KYCed stack will also have a kyced stack. saying t them "just always keep them separate" denies the reality of most people's *actual usage*.
it is a huge foot gun and they will inevitably do something that connects their non-KYCed stack, forever ruining the effort they invested in acquiring it in the first place.
again, this is solved in monero with default privacy and default fungibility.
maxitards deny reality when it suits them and argue disingenuously from a position of "Bitcoin MUST be used."
they dont give a shit about user safety.