I doubt it helps when they do shit that gets everyone hating on them
No, but they should be coherent and meaningful. These fools (or possibly goons for oil companies) who attack paintings are only making environmentalism look utterly stupid. They are openly mocked by everybody because they're lashing out incoherently.
They're actively working against environmentalism. I really think they're bad, selfish, narcissistic, and stupid people. They don't care about the environment.
There is absolutely no reason to think their ridiculous behavior could possibly help the environment.
Discussion of climate, how it is changing, activism around that, the politics, and the energy systems change we need in order to stabilize things.
As a starting point, the burning of fossil fuels, and to a lesser extent deforestation and release of methane are responsible for the warming in recent decades:
How much each change to the atmosphere has warmed the world:
Recommended actions to cut greenhouse gas emissions in the near future:
Anti-science, inactivism, and unsupported conspiracy theories are not ok here.