Doesn't count as anonymous because 80%+ of the utxoset is owned by entities who mined them before it became public and global, which means that those entities can deanonymise pretty much all future transactions.
Marketcap is irrelevant as it's easily inflated (doubly so when all you have to do is slightly bump the price due to the massive amount that's already emitted).
That's a valid point, because when you mix you'll randomly mix with them 82% of the time.