Because their time machine doesn't really work. Einstein was right. Time travel is impossible. Their presidential candidates went to the Dumb and Dumber school of politics. Right now two of them are in a pissing match about their wives - and they're doing this publicly. The only thing missing is one of the Kardashians... oh, wait, Bruce.. no, no, that's wrong, I mean Cait, is joining forces with Ted. Or maybe he'll end up siding with Trump, since that guy really knows how to treat a woman.
Anyway, this North Carolina law is nothing but horseshit and those North Carolina lawmakers know it. They're just trying to get a little smack back before they're totally trampled under foot.