What's the problem with Greenpeace? Because I'm funding their actions since 20 years now, and I wonder if I should switch to something else, like Exxon maybe.

What's the problem with Greenpeace? Because I'm funding their actions since 20 years now, and I wonder if I should switch to something else, like Exxon maybe. Or... I should stop giving indirectly any €€€ to Exxon and alike, and give all the gains to Greenpeace instead.