the only people who will “remove the vermin” are the people who stay in and challenge them
as a US naval hero once said “Don’t give up the ship”
How? They didn't "listen" to anyone or the survey results prior to the "vote", what makes you believe they will now?
A typical organization like this will not lose those vermin unless the organization is in deep trouble financially.
The only way to make that happen is to starve the beast.