I don't know. The US does seem to also have its fair share of strange, overbearing laws to the point where you can easily find "weirdest us laws" lists online:
Those are generally on the books because they are unenforced, so nobody even thinks to remove them. Were they enforced, they'd be struck quickly. Sometimes that even happens.
Are the ones in Germany enforced? Honest question, I don't know, and I'm interested in the answer.
Dancing Ban? Usually not unless you're either A) a very big venue or B) a public place like a school. But for either cases it wouldn't matter much since most of them are closed on those days since they are usually national holidays anyway.
You are severely misinformed if you believe these to be mandated by law. Also missing from US law: parental leave and sick days. None of these things are mandated, they are purely up to individual companies to optionally provide, which just isn't good enough in the rest of the world.
And even so. Do you want the US to be ranked together with developed nations or places like Papua New Guinea and ...
Huh, turns out that's the only other country listed besides the US that has no paid maternity leave.
https://www.businessinsider.com/weird-us-laws?r=US&IR=T