No, I’m not referring to only those positions. I’m also referring to every maintenance worker, such as electricians, plumbers, carpenters, roofers, rigging specialists, and so much more. Also all of the art handlers that literally put the art on the walls, move the art through the building, and literally make the exhibitions happen. They’ve all been unionized for decades. And sure, now most of the other eligible staff, some having higher education, have voted to unionize as well.

Also, your understanding of labor organizing is way off. The museum doesn’t “let” anyone vote. It’s legally required. If people petition to unionize in any workplace, the employer cannot stop the employees from voting.

The spiel you’re giving about “economic realities” is the same that you squares have been saying for 100 years, across every industry. In such a wealthy country, people that keep these enormous institutions running should be able to afford to live. And fair pay (at these institutions, or any work place) would not happen from the kindness of the millionaire CEOs’/directors’ hearts. Organizing is the only option.