Just that line alone makes me think you're far less centrist than you claim to be.
Go farther back and we have Hoover building kompromat on basically everyone, farther still you get McCarthy anti-Left. I don't think there's an era without any kind of corruption or abuse of power. It's romantic to think there was ever restraint, and like believing so seems to depend on starting the clock at an aribitrary historical point.
Not saying I agree but if I had to guess…
We can very easily count the murders that happen in the US every year. With the exception of COVID, which was largely due to unemployment and school closures, homicide has dropped precipitously since the invention of “calling people Nazis online”
Where are all these murders caused by calling out racism and fascism?
As to your last point, I don't recall BLM ever storming the capitol and defiling the building by smearing the walls with their own feces, but in any case, rioters are criminals under the law and should be tried and charged according to due process.
And what does any of that have to do with a Government-run, nation-wide spying operation?
As a centrist my observation is that that left crossed it first, believing that they were doing it for a just cause. Unfortunately that broke the contract and now we are seeing both sides trying to grab power by any means necessary. Until both sides de-escalate, this will continue.
Just like war, many innocent people will pay the price as collateral damage until a truce can be negotiated.