I used to be my company's union rep when I worked in Norway. I had zero need to fight for anything my coworkers did not want. Actually, I was very happy to do nothing until my coworkers complained and asked me to talk to management.
Not all unions are the same, if you think those others are bad you can make your own.
Which is why I very specifically called out tech unions. Plenty of unions seem to be doing the thing I said unions should do (attempt to improve the material working conditions of their members).
Not all unions are the same, if you think those others are bad you can make your own.