I agree. It's time for the individual members to stand up and be counted. Don't vote with the bullies. Even if you lose the vote, ask for the votes to be recorded at the time the vote is conducted. This creates documentary evidence. Ensure that the minutes include the names of the members who propose and second a motion that you consider improper.
Finally, as I've suggested on previous discussions, arrange for a member of the public to attend your meetings, video them and upload the recordings to YouTube. This can have a huge impact on people's conduct in meetings.