Earlier quoted context omitted.
Strange that workers organizing to better their working conditions would raise such concerns, vs. say, the management changing c suite roles with zero oversight. Bosses know best?
One can easily be concerned with both. Unions are a great idea, but some modern unions have been corrupted, focusing less on worker solidarity and improving conditions/pay and more on unrelated “omnicause” topics that are destructive to both the workers and the company. Emphasis on some , which is why I said it may be fine. It’s really hard to tell in advance. Executives have always been a potential source of problem…
The issue of leadership corruption in unions is well-known and definitely does _not_ lead to the kind of PC tyranny you're worried about here.
To be clear, what I'm objecting to is the "harrrumph I'll support worker's unions IFF they hew exactly to my non-working-condition-oriented values and demands." How about just supporting the workers?