Here's what I'll say. Every union is a democracy and has to decide what is right for it, but unions are the fighting organizations of the working class and we are the rightful rulers of this society by virtue of actually making it run and being the literal majority in a classic liberal sense.
U.S. and western unions generally have been very conservative and "business unions" since the anti-communist counterattacks after WW2. This is because there has been a constant counterinsurgency tactic against our leadership involving cooptation, sidelining, and even assassination. The wealthy want to rule unopposed and for you to just vote for one of their pre-selected candidates in elections.
Since you mentioned Gaza, an issue dear to my heart (not that BLM isn't, but for brevity I'll talk about the movement that is highlighted right now), let me give an example that illustrates how essential unions are. Tech companies like Google and Microsoft are supplying information technology and AI systems to the occupation and are making bank doing it. Who is going to stop them? The people best positioned to do so are their workers.
The most essential way to help Gaza is to enforce sanctions, halting economic activity with Israeli companies, and most importantly stopping the transfer of all military materials to Israel, even so called "defensive" weapons like Iron Dome that allow the occupation to perform the genocide without repercussions. In Italy, huge strikes and protests forced the openly fascist PM that praised Mussolini to send a warship to aid the Global Samud Flotilla which aimed to break the siege on Gaza. Dock workers in Italy refused to service ships bound for Israel with weapons, and got the (again openly fascist) PM to enforce a weapons embargo.
https://www.thenation.com/article/world/italy-general-strike...
Assert your right to rule this global society in the interests of humanity in concert with your brothers and sister workers around the world.
And now your union discriminates against Jews and Israelis. Great job.
> Since you mentioned Gaza, an issue dear to my heart (not that BLM isn't, but for brevity I'll talk about the movement that is highlighted right now), let me give an example that illustrates how essential unions are. Tech companies like Google and Microsoft are supplying information technology and AI systems to the occupation and are making bank doing it. Who is going to stop them? The people best positioned to do so are their workers.
But the primary job of a union is to represent its workers in the workplace, not to do any particular political thing that workers are "best positioned to do." Given the weak position unions are already in in the US, it's not the time to, say, alienate the fraction of the workforce who supports Israel from the union. You need those guys to vote to get the union certified, which is already a difficult uphill battle without their alienation.
The union and its organizers need to be able to say no, and be ruthlessly prioritize and be pragmatic. If they can't, I think their chances of accomplishing anything are slim.