Sad! I don't remember much "Yellow vests" violence, but I must admit I wasn't following France much when they were big.
Discussion
https://en.wikipedia.org/wiki/Yellow_vests_protests
I never looked at it in detail (because I don't care that much) and let's take Wikipedia with a big grain of salt.
These protests were big, long and often violent. Also their demands were very much leftist (tax the gas less, we want bigger pensions!, tax the rich more etc...). And yes the increased tax on gas was because of climate change. So the crowd just doesn't care about climate agenda, wants to pay less taxes and wants the rich to pay for the state expenses. Meh...