Now putting myself in the shoes of the protesters: seeing the same destruction, destroying of properties, cars and businesses, I'll call it a day because this is no longer a protest. I'd go back home and wait for this to be taken care of and join a civilized protest once this has been taken care of. A civilized country should be able to hold a civilized protest. And having spent most of my life in eastern Europe, you can say I know a thing or two about protests. Last large protest I was a part of was in ~2013 irrc and the aftermath was very different. The night after each of those protests, everything was spotless clean, people thew all their garbage in the bins, nothing broken or destroyed. People were coming with their children and pets and being completely comfortable with it. There was a completely unrelated incident of a gas explosion at a Chinese restaurant, which burned a nearby shop. People gathered donations fo the shop owner to recover. Incidents with police? Practically none during ~3 months of daily protest. And we are talking eastern Europe - the police officers are anything but the nicest people on the planet.
[1] https://twitter.com/XruthxNthr/status/1266903223220097024
On the first, I firmly believe that you should always deploy people who are accustomed to a more difficult or dangerous task. Managing large crowds of potentially violent people is far beyond the typical danger police face (usually peaceful, or one or two dangerous people). On the other hand, this is one of the scenarios the National Guard is trained for. And the level of force is likely lower than what they have trained for. The current response is like handingba Sev1 incident to an intern. They're just as or more likely to cause more damage as they are to help.
On the second point, handing armored vehicles and body armor to a group that isn't well versed in their use and effects on the opposing force is a bad idea. The outcome is inevitably the "five foot drop". When you your electronics don't work and you don't know how to fix them, people tend to give it a hard smack to see if that works. Likewise when your day to day policing doesn't work, deploying your heaviest armaments probably seems like a good idea.
I do still hold the officers accountable to a degree. The degree of force is incredibly one sided. However, more than them, I blame the system that put them in a situation they are so unequipped to handle.
This may be a topic of another discussion but I wouldn't call it a bad idea in a country where everyone and their dog has firearms, just saying...
On the topic of armored vehicles, I vehemently disagree with distributing them to police forces. If there is a significant threat of a firefight, we have an existing domestic force that is trained to handle combat conditions. They are the National Guard. If things escalate to that point, the proper response is to call in the National Guard. They are both trained to handle that situation, and they have far more equipment than you could ever hope for. The National Guard has actual tanks, if it comes to that.
I will grant you, there is a very narrow middle ground of things that SWAT is equipped to handle but the National Guard would take too long to deploy. However I would contend that the military attitude SWAT-style tactics cause costs more in human lives than the small subsection of things SWAT needs to handle before the National Guard arrives.
The police should be a domestic force, charged with maintaining law and order among largely non-violent and lawful citizenry. The National Guard should be a force charged with handling violent and unlawful situations.
Traffic stops are well within the police jurisdiction. Standouts can be handled by police, so long as they don't plan on going in to the building. Taking a building full of hostile combatants with at-risk civilians should be handled by the National Guard. If the police feel at risk enough that they need more than a handgun, they should call the National Guard.
The police are not an invading army performing an occupation of hostile lands. They are public servants enforcing democratically chosen laws on a largely willing populace, of which they are part. Anything outside that scope should be handled by another branch that has been chosen and trained for that purpose.