Sorry, you're asking me to say how all these various unions would consider this idea. I can't honestly speak for them directly. The only thing I can say very clearly is that all the major unions in this country are in favour of moving to a full public national pharmacare program.
You are asking me whether they personally will be prepared to pay for it? Well, many of them would actually get money back if they were not contributing these amounts to drug plans, so there is some wiggle room there.