So that made it ok?
I think he meant the protests were ok, not the violence that sometimes accompanied the protests.
The last time there was a protest in America by either side that did not at least run some risk of violence was when the Shriners showed up one day to demand their right to wear their tassels on whichever side of their hats they felt like. It's only mentioned in the history books because it was the only day the nation as a whole ever took the afternoon off to nap.
To put the BLM protests in much needed context and realism, there were at least 200 American cities that saw one or more protests by a group of any size. Violence took place in fewer than two dozen cities, although it was recurring in a few of them. I'm going by memory there from stats I found at the time, so take that into account.
In contrast to the actual level of violence, at least one popular media outlet through-out the summer ran video of some of the worst of the violence every few minutes. Pretty much the same scenes, repeated 'constantly' for months. Judge the significance and impact of that according to your understanding.
We Americans do love our entertainments. It even amuses us to call our entertainments 'becoming informed', although it seems possible that might be self-flattery at work.