Do you or did you have tenure?
First, how would my answers change anything I've said?
Secondly, I've never had tenure, and I think the concept of virtually guaranteed lifetime employment is repulsive.
Finally, in my lifetime, I've been a member of AFSCME, AFL-CIO, AND the NEA, and hated every one of them. Two of those three times, I did not have much of a choice about being a member. I certainly don't support them, and I'm rather sure that I would have earned more without their overwhelming interference. I despise pay-scales based on seniority rather than merit. I fought against every union I belonged to. I had to post the President's EO supporting Beck myself since my school's union reps would not.
Does tha answer your question?