I don’t know whether a walkout would or wouldn’t be a protected activity. It’s a tricky question with a lot of moving parts. I suspect you don’t know either. If that’s the case, you ought to be more careful about giving legal advice in confidant and unconditional terms where that advice, if taken, could lead to adverse consequences for readers.

If you are attorney specializing in labor law and you think the above posts comport with your ethical obligations, then carry on I guess.