What to call the enemy?

Pro-european is obviously too nice and paints us as 'anti Europe.'

Other options are:

Euro-nationalists

Euro-fanatics

Pro Europeans

Europeans

Pro-Integrationists

Integrationists

Federalists

Europhiles??

Yes Campaign / No Campaign

Little Europeans

I quite like pro-integrationists. It's accurate, non pejorative and paints them where we want them: not wanting the status quo but more integration.

Any other suggestions or thoughts?

EDIT: The point of this is as a tool for winning the argument. If you can define your opposition as something the public don't want they won't vote for what they're proposing.