Well, if you wanna be a pathetic scab of a man and refuse to fight alongside your brothers in the quite necessary struggle to maintain even the most basic protections of the working class, that's fine.
You're free to be a pathetic scab, to grovel at the feet of the owners under the assumption that you're special, that you someday will get to be the oppressor rather than the oppressed as a reward for being such a good dog.
Since the 70's we've been in a state of absolute regression. Workers get a worse and worse deal. We get paid less to do more work. We're buried in debt up to our eyeballs. Our benefits and pensions are disappearing. If you're a production worker and you still think that production workers have it too easy, and that the owners have it too rough, that they need help to get another jet, I guess by your conscience you should refuse to be in a union. Can't hold that against you.
Of course, if some of your comrades characterize you as a pathetic scab bastard because of your decision, shun you in the workplace or do pretty much whatever else to voice their displeasure with you, well, I couldn't hold that against them either. Fair is fair.