I do vote in Euro elections and for a party that is closest what i think, then again at General Elections. If not happy vote your MEP out them, same as your MP.
The EU needs reform, no one doubts that but after the voting from all over Europe, the EP is a reflection on everyone's vote. Do we have a balance of the UK? When people have to tactical vote and not vote for the party they want? The criteria applies in the EP to temper extremes.
As i said in the other post the mandate of course will be applied differently, the whole of the countries decide on what they deem fit to move the bloc forward.
I live in a country in which i have no confidence in the sitting government and i will vote against them again, meanwhile the sham and the pointless exercise of the UK voting will carry on.