Maybe if they asserted themselves as much as the EU does the tech situation of the US would be the same as the one in the EU.
There aren't big European social networks, but that might be caused by the fact that Europe is linguistically and culturally very fragmented. Which does not matter as much if your product is an antivirus, but it does matter when you build a product whose value is in the sheer mass of mutually communicating users. The Anglosphere is HUGE.