>>473067>Revolutions don't happen when the people being ruled over are content. They happen when their rulers have done something to piss them off enough to overthrow their system
The masses make revolution when they think it will make their lives better, collective revenge probably isn't a thing. Masses of people don't get organized just for payback, all that effort that goes into pulling off a revolution, that's motivated by gain. Revenge killings during revolutions do happen of course but they are acts of individuals, and they're usually frowned upon because the after-revolution politics has to recover from the disruption of normality and order.
>at that point their rulers can either expect to be killed themselves in vengeance or cling to power as hard as they can to protect their lives.
Not really, the rulers that give up tend to live while those that cling to power usually don't. Clinging to power means using brutal methods and making them selves into monsters. In the end that's what gets them wrecked. And this isn't because of vengeance. It's people having gone through rough times, thinking about all those good people that didn't make it. And then not being able to answer why these horrible monsters should be allowed to survive when the good people didn't. I have read a lot of testimony from the post ww2 period, people complaining about the wrong people surviving is a prominent theme. That sentiment ended a fuck-ton of Nazi collaborators in the last stages of the war.
The N°1 reason why terrible rulers get killed off is because they clung to power too much. Even the most horrible politicians almost never get killed because their hold on power is limited. And getting rid of them usually isn't terribly hard. So if the effort of getting rid of terrible rulers was low enough it's not worth killing them, but if it took a tremendous amount of struggle, people feel that they want to make sure that it's "permanent". Democracies have so little political violence because political power tends to be more ephemeral.
By the way the bolsheviks initially didn't intent to kill the Tsars. After being deposed they were put under house arrest for a long time. The firing squat order was given because there was a risk that they might get released from captivity by opposing comPost too long. Click here to view the full text.