MetaMask complaint: SCAM INSIDE MY WALLET

Two days ago a token entered my wallet offering ethereum, just by clicking it it was activated immediately and I stole almost 2000 euros, I hold Metamask responsible for many reasons: 1.- Although it is true that they are decentralized transactions and anyone can see your address : metamask should not allow an unknown address that has not previously been accepted in the token list or in the contact list to enter your wallet.
2.- That the same token cannot even be sent to spam or delete it, you can only click to open it, which is the same as receiving it
3.- just like a scam sends a token to steal you, metamask should send you one to warn you of the possible risk that you get an unknown token, it cannot be that they only strive to be de-centralized and not for security, what is the use of so many security measures to login if any malicious token can enter your wallet.
4.-When I had my balance in the tether in the ethereum network in metamask I wanted to return my funds from where I initially sent them which was coinbase and I had my tether address in coinbase I surprise I did not get the send button it was only in see I go out, and that after accepting the malicious token and already having the ethereum balance, there is if it already allowed me to transfer but it was too late
5.-Everything that metamask does is done to retain your funds, and that lends itself to someone sending you a malicious token.
6.- In my case they did not hack my account, they did not send me anything to the email, I did not install a false metamask, it was inside my metamask wallet that that false token arrived and that it is still there.