Blocklists have a role, blocking has a role, defederation has a role.
But.
If you go around using a hammer to cut boards you are generally going to have a miserable time of it and end up with a lot of damage to the boards.
Use hammers for nails. Use saws for cutting boards.
If you don't have a saw and all you have is a hammer, breaking boards with a hammer is still probably not the best solution: help get a saw or manufacture a saw, and a better blocklist is not even an improvised saw.