Lmao, globalist social democrats will be wiped out before 2020 from European politics if they keep following their current route.
PES only controls a handful of EU countries and they are bound to lose Italy and Sweden in 2018, basically less than 5% of the EU will be governed by politicians with Schulz mindset.
True, but it's not like EPP is any less pro EU (with some exceptions like Orban). And ALDE is also very pro EU. Of the 7 largest countries by population their governments will be:
Germany: EPP
France: ALDE (sort of)
Italy: Either EPP (if Berlusconi wins) or EFDD (if Grillo wins)
Spain: EPP
Poland: ECR
Romania: PES
Netherlands: ALDE
So of the 7 largest there will only be 1 or at worst 2 that are anti EU. I do think a referendum would fail (narrowly passing overall but failing in several countries) but you would see very dramatic splits from country to country.