* Americans no longer welcome in Europe; you think you can spy on us, torture people, kill innocents, trample over longstanding diplomatic conventions to ground a president of a country, put the full might of your police state to hunt down your own freedom fighters, and then come here and have a good time or do business? Think again. US citizens not welcome here anymore!!! You can do what you want in your country, but don't come here if you don't respect our way of life and our privacy.
* Let's kick the Brits out of the EU (they don't seem to be too happy in there anyway); they are basically just a foothold for the American fascists in the EU and do their bidding
* Let's not stop at moving our own email and social accounts to European providers. Refuse to accept emails coming from gmail, yahoo etc. domains! Send automatic replies that explain why and suggesting ways what is acceptable.
The point is: The US electorate and businesses are either pro surveilling the whole world, even their own allies, or they are lethargic and indifferent. If the former, we should draw the consequence and stop having contact and exchanges with them. If the latter, we should increase the cost of doing nothing. Hurt them the only way we, as citizens of the world without a voice in the American police state, can hurt them: In their pocket and in their options to travel and have fun. America is always so happy lecturing the world about democracy. Well then, now you can show us which way the wind really blows in America and its relation with the world.