The British did a lot of terrible shit, and a bunch of shit that were clear and obvious violations of Colonial English rights...
... but the Boston Massacre wasn't one of them.
As for Kent State:
The Communist """""peace activists""""" tried to burn the ROTC building down with everyone inside. Casualties from the burning down of the building were zero because the cadets reacted quickly.
The Ohio National Guard's unit commanders were criminally incompetent and disorganized.
The Boston Massacre was the original Kent State, and the soldiers were justified. Don't mob armed soldiers and you won't get shot.
The British did a lot of terrible shit, and a bunch of shit that were clear and obvious violations of Colonial English rights...
... but the Boston Massacre wasn't one of them.
As for Kent State: