This completely misses the point, the laws shouldn't be written to accommodate businesses, its the other way around. If fragmenting is a consequence of better privacy laws, so be it.
Imposing byzantine regulations on every webmaster on the planet isn't helping anyone, least of all the European user, who will increasingly be locked out from the rest of the planet.
The EU consumer will end up with strictly worse solutions and all the rest of the world will “gain” will be the crappy trade-barrier-supported Euro versions of Google and Facebook.
I see very little advantages from these privacy laws but I use and appreciate US businesses every day.
Still, the "please let us track" popups can be fixed by policy or law, and I hope they are.
Lots of loaded assumptions there, of course, starting with the first conditional clause.