I'm not sure why anyone would draw the conclusion that they are losing Facebook because of an EU mandate, when all other competitors continue to work for them.

I'm not sure why anyone would draw the conclusion that they are losing Facebook because of an EU mandate, when all other competitors continue to work for them. And if they dig into it even slightly they will probably be even more horrified at Facebook once they find out they lost Facebook because it considered transferring their data to the US more important than having them as a user.