I want to be vegan for the planet but what about the methane the cows make?

Like the title says, I want to do my part for the climate emergency and go vegan because people say it's the best way an individual can make a difference.

What I don't understand is that if we stop eating cows, they are going to run rampant, right? All those cows going free, terrorizing their former captors and wracking havoc. That's got to have carbon emissions right? And of course their FARTS.

Honestly, I think the best thing for the planet is to keep eating those climate destroying jerks.