'Right to work' is the 'right' to get paid less, the 'right' to be denied full-time employment, the 'right' to be deny benefits, and the 'right' to lose your job for any reason through no fault of your own.
With so many 'rights' it's impossible for many Americans to find a full-time job or make a living wage.
For most of my life I've never worked for any unions and never experienced any of the problems you listed.
Your day doesn't start with your attitude telling your employer that you hate them, does it?
LOL, you can't do that without a union. I have union story after union story to tell but don't have enough room to tell them all. But what the hell, maybe just one:
When I was a teen back in the 70's I was in a rock band. The other guitarist was older than me and worked at the steel mills. I knew he worked on the trains, but never knew what he did.
One day he stopped over while I was on summer vacation and asked if I wanted to take a ride with him to work so he could pickup his paycheck. I've never been inside the mills before, so I tagged along. On the way there, I finally asked what he did exactly.
He told me that he was a union fireman. Confused, I asked what a fireman did? He said his job was to shovel coal into the engine so that it could run. Confused again, I asked "They don't use coal fired engines anymore, do they?" To that he replied, "No they don't, but the union says you have to have a fireman on every train."
They used to pay this guy to ride around on trains all day and do virtually nothing. When the plant closed down, they were screaming that it was big greedy corporations that were responsible.