Your logic is impeccable, but there is a lot of strawmaning and questionable assumptions.
It seems likely that the entire political spectrum wants cops held accountable. It is a fairly non-partisan issue that corruption of the police is a massive problem. The right wing hates the idea of people not following the rules, and the left is usually suspicious of the police at best.
And you've judging a right to protest about the corruption of the police force as morally American while protesting corruption in the electoral process is somehow unpatriotic. Those are both extremely civic things to be protesting, the equivalence is very strong. Both are core US principles of freedom and self governance.
Also the idea that the right wing protestors are more organised than the left is extremely suspect. The left are stereotypically much more organised and mobilised for protest - left wing politics has a long and proud history of working effectively through mass movements. Protestors are one of the pools the left wing draws its candidates for (there is that wonderfully classic photo of Bernie Sanders being arrested, for example). Trump is a more iconic figurehead but the left has far more effective logistical and advocacy support around protests. BLM protest leaders quite possibly are going to be a part of the next generation of Democrat leadership.
It seems likely that the entire political spectrum wants cops held accountable. It is a fairly non-partisan issue that corruption of the police is a massive problem. The right wing hates the idea of people not following the rules, and the left is usually suspicious of the police at best.
And you've judging a right to protest about the corruption of the police force as morally American while protesting corruption in the electoral process is somehow unpatriotic. Those are both extremely civic things to be protesting, the equivalence is very strong. Both are core US principles of freedom and self governance.
Also the idea that the right wing protestors are more organised than the left is extremely suspect. The left are stereotypically much more organised and mobilised for protest - left wing politics has a long and proud history of working effectively through mass movements. Protestors are one of the pools the left wing draws its candidates for (there is that wonderfully classic photo of Bernie Sanders being arrested, for example). Trump is a more iconic figurehead but the left has far more effective logistical and advocacy support around protests. BLM protest leaders quite possibly are going to be a part of the next generation of Democrat leadership.