If US police is this incompetent, the only real solution is to take their guns away. It works in the UK.
And yes, there are more guns in general in the US, but that means that the police needs to be BETTER at deescalation than in the UK, not worse.
(Also: Obviously there are exceptions for specialized units in the UK, and the same would have to happen in the US, but your standard run-of-the-mill cop really doesn’t need more than pepper-spray and a stick.)