The one who opposes is merely exercising his right. What is worrying are the rest who played dumb which means they condone. And the irony is why aren’t disagreements put to a vote? That’s standard meeting procedure.
And the usual committee members excuse when things go wrong is “It iis a voluntary job and I don’t earn anything from it!”
Well your mere acceptance does not absolve you from responsibility even if you are cajoled in.