I don't understand why Europe and the US expend so much money and energy upholding the very laws that allow the big players like Amazon, Apple, Google, and Star

I don't understand why Europe and the US expend so much money and energy upholding the very laws that allow the big players like Amazon, Apple, Google, and Starbucks to evade taxes. The whole notion of 'intellectual property' seems purpose built to evade taxation. How are these governments funding these cases? With taxes. Taxes not paid by those who are benefiting most from these laws. It's a negative feedback loop. The more they spend, the more they ensure it is a winner take all scenario, and the more the winner will avoid paying taxes.