> I reject your suggestion that I am ignorant how unions operate. I have been a member of a union for many years.

I was a member of a union as well.

> Larger decisions are decided by voting.

After they went through the filter of the leadership, either via the “bargaining committee” or any other form of delegation, selection to which can be based on votes or appointments.

You can Google yourself how teacher unions opposed NYS health care bill, and why they deemed it necessary to justify their position with “protecting the fought for benefits” among other things.