US Tech Giants use tax optimisation created by the single market to avoid EU taxes to the tune of billions a year. That’s on top of them getting far too much access to public markets in the EU including for plenty of things EU companies are bared from by the Buy American Act in the US.
The idea that EU is somehow a mob boss shaking down American tech companies is plain ridiculous. Just take a look at the EU-US trade balance in service and you will understand in which direction the money is actually flying.