This is clearly and definitely true at any for-profit corporation, it’s less clear when “the company” is not-for-profit or cooperative. For example, I know of a small university (in Canada) whose tiny faculty of 40 just unionized, and I suspect they will be sorely disappointed by the added (and unnecessary) structural adversarialism.
@DavidM_yeg
If the organisation was aligned with the workers already, then I see no reason for it to be unaligned with a union.
Though the question is; if the workers and organisation were so well aligned before, why did they unionise?
Possibly the organisation isn't well aligned and the conflict will come from unrecognised differences. Progress will be made by not demonising the union but working with the counter weight as a legitimate part of the process.