Why does US company must pay European Union tax

I find the article reads like a complaint against paying the taxes. I'm not certain this is more complicated for the business than the sales tax system in the states - potentially 50 sales tax rates to pay plus more if a city wants to add an additional tax (though admittedly in Indiana I think those are reserved for food and hotels).

The reason the business is required to add in the tax is so that customers are getting upfront pricing that includes the tax. The system is much easier for me - I hated tax sticker shock in the states. I know the tax is there (I'm now living in Norway), but the cost of the tax isn't a shock at the register.

Why does the business have to charge it? Same reason businesses have to collect sales tax in the states. Do they care if you are an American company or not? No, but honestly, the American government doesn't care if you are an american company or not, you still probably have to pay the tax (especially if it starts to be universally required and enforced).

Most of this post is wrong to one degree or another.

Ignore it.