The most important right I have in the workplace is the right to resign, which allows me to negotiate the rest of the terms. If it were “union thugs” that got it for me, they were fighting the confederacy 1861-1865, not their employers.
Does workplace safety come from unions? OSHA was created by an act of congress.
Weekends? I think that idea came from a guy called Moses, long before trade unions got started.