"I print a free newspaper. The margins are good if I put interesting-enough content in it and businesses pay me to place ads. An Indian retailer pays me for ads because my readership is high in India. Sometimes to get better content I pay writers for content. None of these people live or work in the US but the US government says if I send a free newspaper to someone in the US, the writers I hire owes them tax"

This thread seems to be full of arguments that YouTube's product (customer eyeballs) should induce a tax for YouTube's suppliers (content creators they pay) even when YouTube's suppliers and YouTube's customers (advertisement purchasers) aren't even located in the US.