I could not agree with you more except for your first sentence. As we've seen for decades and especially in the last few years, dullards will latch on to their favorite figure and treat their words as the gospel. There's 100% a correlation, but I agree with you in that your actions are your responsibility alone, regardless of what you think.
That being said, all sorts of people have been missing opportunities to use their clout effectively. Everyone has an agenda, but apparently none of them are interested in hearing the other side and facing their own deficiencies and flaws.
It would be nice if someone with a wide-reaching voice would say something along the lines of "police brutality is bad, attacking police is bad, let's work on stopping both." How simple is that? What's the risk/reward?