1- They have the ear of those Tories who cherish the Union though, and have the leverage of being able to delay a return to Stormont. It's a lot more complex than them simply 'reneging on a treaty.
2- No, I didn't, but that's not denying democracy. Sarcastic remarks don't suit you by the way.
3- No, the EU doesn't appoint parliamentarians on a hereditary basis. That's not what I'm referring to.
Why is the EU undemocratic? The EU commission for starters! All commissioners unelected and unaccountable. Making countries vote til they get the 'right' answer is another example.