Putting an issue up for Parliamentary debating time is one thing, but it is a long, long way from actually enacting a Bill to hold a referendum on EU membership.
That's clear, but oddly you seem to think that's where it ends - at introducing a debate issue. 🤦♂️
No, it took more than the Conservatives to enact the Bill To Hold A Referendum on EU Membership. Only the SNP voted against.
Labour didn't. Indeed, Labour had a three line whip in 2017 under Corbyn in order to defeat an amendment to keep the UK in the EU SM and CU.
Once again, it took more than the Conservatives to do all of this. That's the reality.
So, introducing a debate in Parliament is one thing and winning it is another altogether. You cannot change this fact.
No more mental gymnastics, eh?! 🤷♂️