>Moving Bitcoins between wallet is not anonymity and does not give you plausible deniability against law enforcement.

Moving fractions of bitcoin between 100+ wallets using something like coinjoin absolutely gives you plausable deniability and anonymity, how would anyone know what % is still in your custody?

With enough people doing this, eventually all bitcoin will be tainted. At that point will exchanges start to refuse 100% of all bitcoin being deposited?

I think its more likely chainalysis goes bankrupt.