> That’s no particular reason to hide that kind of work.

Wow, that is incredibly hard to respond to without casting aspersions. You claim there is no reason to hide a fundamentally unpopular and sometimes illegal thing?

This is the kind of thing that is so wrong that it doesn't merit a factual response. This in line with people using levels on airplanes to prove the world is flat.

I don't know if McKinsey is or isn't union busting, there are credible accusations against them. But I do know that discounting the notion out of hand and not even attempting to present evidence or argument is so laughably wrong that you should feel ashamed.