My spouse (medicine) and several of my peers (journalism) have and they would disagree. Spouse has experienced both sides of the coin, and has seen better benefits and better pay in the unionized workplace than the non-unionized one. Very much the same story for my journo peers, but in their case, they unionized the workplace so the only variable that changed to improve their lifestyle was the introduction of a union -- not a change of location or management that a bad-faith FANG-worshipper would use to muddy the comparison.
I'm sure those aren't valid examples anyway, as the only unions that matter in discussions on this hellsite are the ones that also exist in Randian works of fiction.
I'm sure those aren't valid examples anyway, as the only unions that matter in discussions on this hellsite are the ones that also exist in Randian works of fiction.