Undermine is a strange word to use in this context. I abhor violence against police officers. “Bad apples” among protesters should not be tolerated and should face legal consequences. However excessive use of force by police must also be evaluated after the fact. The record is clear. The situation needs to be addressed with revision to qualified immunity and to “defunding” at least to the extent of locating some mental health and community services outside of police departments. Police officer education had improved substantially since the 1950s and 69s. We ask a lot of police officers but we need others to perform some related services in the community in the interest of public safety.