Love it or hate it, Twitter (yeah, I choose to be stubborn here) is still probably overwhelmingly the most impactful platform in this way.
While I respect the idea of the "boycott" in the abstract, perhaps the most wrong thing people think about it is "Because it's controlled by so-and-so, everyone who uses it is brainwashed and it's impossible to do good there."
Nope. Look, a lot of good people are still there. I personally also wish they would all leave and we all go elsewhere -- but that's not the present reality.
As such, people who insist that you must leave and no good can happen through staying ring the same to me as "IF SO AND SO GETS ELECTED IM LEAVING THE COUNTRY."