I'm a union organizer in an adjacent industry (video games). This is a very common anti-union talking point amongst bosses and managers that want to look progressive. The underlying message is "I'm ok with unions, but not here".

With respect, I would disagree. Taking it personally is a problem. Expecting everyone else to 'just trust me bro' is a problem. Look at it another way- 'if my staff unionize and anything needs to change then I've already failed as a boss'

It's wrong in the sense that he apparently believes that he is able to provide everything that a union does, which is hilarious.

A union has hundreds or thousands of specialist employees working full time for the members, and this guy is like: "yeah I can do that while also managing my company".

At best he is saying "I'm willing to pay people to shut the fuck up."

In reality he probably doesn't even have a clue about what a union is about.