[makeitsuckless]

You start with being ethical. In the online business, that pretty much covers most things with the exception of VAT, the clusterfuck known as "intellectual property", and the fine line between freedom of speech and hate speech. (I'm ignoring doing business in repressive regimes, because there you've only got yourself to blame.)

The only reason why US companies are in trouble in Europe is because they use unethical practices that happen to still be legal in the US.

However, it was pretty obvious up front that those practices are unethical and illegal in most of the Western world.

So please, stop whining about the complexities of international businesses when the root cause is simply a lack of basic decency.