Normal

conforming to a standard; usual, typical, or expected.

What they experience is normal, normal for their community.

I think you are using the wrong term.

I think you might mean, proper.

Proper

of the required type; suitable or appropriate.

You think how the U.S. society normally treats the working class is improperly.

Many jobs have paid leave and parental leave. Both of my employers had both. I worked for more than 40 years, and I had paid vacation every year, often more than I wanted to use (most of my career I had 6 weeks of paid vacation a year). I was allowed to bank some each year and when I was laid off, they paid me for my unused vacation.

In the U.S. it is normal for fringe benefits to be a perk of good jobs not something required from every employer. You think paid vacation and parental leave should not be a perk, not a benefit but an obligation for employers.

What about part time and seasonal workers, should they get vacation and parental leave, of course not. So, if it is proper for some workers to not get benefits, who is to say who gets them and who doesn't?

Competition and status are the American way. Americas, or at least many of them like the idea that you can have a benefit that someone else does not have. It is a status thing. Americans might be created equal, but they don't want to remain equal. They want to be better than someone else. Often the pretend to be of higher status than they truly are, to show off, it is aspirational.

TEK