Based on good laws and regulations in countries where the freedoms of the people outweighs the freedoms of corporations.

One could argue that by presenting factually wrong data about union benefits the employer is contradicting the following:

It is unlawful for an employer to subject a worker to any detriment by any act or deliberate omission where the sole or main purpose is:

•to prevent or deter them from taking part in the activities of an independent trade union at an appropriate time

Based on laws from other democratic countries who aren't even particularly fond of unions as a whole, but still didn't go full mask off capitalism.

Fun task for you if you want to learn more about this : research why labor day is May 1st basically everywhere else in the world, but not in the US (and Canada).