I think disbanding it and defunding it is a dumb idea unless it's going to be replaced with a whole new better trained force. The police system may be corrupt but not third world corrupt, and anarchistic gangs would be worse.
While I agree with you fully, the insurmountable task of training for every possibility is not do-able.
BUT, some broad level of all training should include reminders to respect and protect every person's civil rights.
Allowing a suspect to breathe while being taken into custody should come well before constitutionally provided civil rights, however.
I do not believe all cops set their day to see who much harm they can do. Even that despicable lowlife, Chauvin most likely did not chuckle over coffee that morning saying shit like, "I gonna kill me a nigger today." And yet it happened.
(forgive the slur, apologies to the memory of Mr. Floyd) But I think just not caring (maybe it's just today for this cop, but every other cop and every other American is responsible for his behavior if it is wrong) is something that HAS to be constantly peer monitored, by each officer, of each officer by
every other officer always.