Oh good, you are going to try intellectual honesty for a change.
So do tell, what matters if SKorea puts VAT taxes on US goods when they simply sidestep the US taxes you were mentioning in the first place?
"We need to raise taxes on our corporations! Wait, our corporations try to avoid paying taxes! That's not fair, we need to raise them ever more! But wait, foreign corporations try to avoid paying taxes! Raise theirs even more also!"