Ask Lemmygrad

I'm watching the DNC, and it's made me even more aware of the power of liberal bourgeois democracies to let out a little revolutionary energy whenever it gets close to the edge, through concessional policies, like New Deal policies or whatever Kamala might do if she wins, or even the act of voting and campaigning itself. Do they have to go through a fascism phase first, or has there been a liberal bourgeois democracy that has successfully had a socialist revolution? Will it take new theory to figure it out?