First, have you ever asked (even if just yourself) if anyone sees an issue with massive corporations?
The second thing is that it isn't the right question. Anything make by humans is imperfect. The question is, does union representation lead to better outcomes for a larger number of people? And the answer is pretty clearly yes.
The answer to "massive corporations" isn't another massive corporation. These unions operate in the same manner as corporations but produce nothing. The ones at the top get massive bonuses and get filthy rich from your paycheck.
Also the amount of corruption within these organization is insane. They also lobby like corporations (just ask biden) They ARE "corporations" masquerading as a good cause, does that remind you of any tech giants?
The second thing is that it isn't the right question. Anything make by humans is imperfect. The question is, does union representation lead to better outcomes for a larger number of people? And the answer is pretty clearly yes.