How are they able to generate the income? Through the services YouTube provides from the US. How is YouTube able to provide those services? Because the US government creates infrastructure to enable it. How is that infrastructure paid for? Taxes. Hence they tax the income.
I’m not arguing for/against btw. Just asking about the technical reason.
That's not universally true. My home country doesn't require any income taxes from me since I neither work nor live there. AFAIK the US is quite unique in that regard that they require their citizens to pay taxes no matter where they are working or living.
Hearty laugh.
Yes, to a degree, but at the current time (and for a good long time) the US government does not even pretend to try. Tell me a significant infrastructure package since the interstates.
Many relevant infrastructure are created by telecom companies, should we owe taxes to those too?
They don’t have tax raising powers so they can’t. The US does so it can.