The answer to your questions is that those are not examples of police brutality, so long as the police respond with reasonable force.
Along with reading your other comments here, I viewed these 4 questions as a bad faith attempt at steering the conversation off topic. When people complain about police brutality, we are not talking about the times when police have to legitimately defend themselves or disarm someone. This thread is specifically about the hundreds of clearly documented examples of unprovoked violence by police in the US over the last few weeks, many of them against journalists, elderly people, kneeling protestors and so on. Please engage with that and don't try to change the subject again.
I just gave you a counterargument and an opportunity to turn this around and respond in good faith to the issue at hand. You didn't take it. That's why I'm saying you're arguing in bad faith. You refuse to accept fault or engage with the real issue here, instead resorting to logical phallacies to try and derail the conversation, as most people on the far right do these days. Try again. Can you respond to the issue at hand, ongoing police brutality in the BLM protests?
How do you stop someone pointing a gun at the police officer without brutality?
How do you stop someone attacking a police officer?
How do you stop someone going for their gun?
How do you stop someone going around shooting innocent people?
etc, etc, etc.