What was this view exactly? They would have know their pets and farm animals reproduced sexually. I guess it isn't a leap to think all mammals? So what animals did they think did not?
So, we tend to think that it’s just common sense that most animals reproduce sexually (actually I think most people would assume that _all_ animals do; in fact, as with most things, there are edge cases), but, well, to an extent that’s because we already know that. The historical view was a bit different: https://en.wikipedia.org/wiki/Spontaneous_generation
If you hire someone in say Australia you would be subject to its fair work act, and its courts. You'd need to sus out the tax situation too.
What if they are a contractor? Well usually the law treats these things like ducks and asks if they quack. If it quacks like employment it is subject to that law.
I find that Employers of Record (EoR) make this a non-issue.
I work for an American startup, remotely from S. America. I'm hired according to the (extensive, and expensive) local labor laws, while my startup likely knows absolutely nothing about the intricacies of how my countries' labor laws work, the EoR just handles everything and sends the employer a bill every month.
Trump's plan might help with my dream of being able to be paid well in tech without going to the US. This action is another reason to divest from the one tech hub to around temperature works.