Bitcoin is far from anonymous.
It is just the opposite.
Every transfer is in the blockchain and traceable.
If you want to go anonymous then I suggest that you look into some other coins,
like Monero, Verge, Deeponion, etc.
And what could the blockchain do? It does not give you any info other tha transaction.
The blockchain provides link and history information. all an antagonist has to do is to find another poor secop in your behaviour and link the account to a computer or human.