Not too much, I'd say. Remain lies also probably swung the vote, so they at least went some way to cancel each other out.
Overall, neither side did much 'useful'. Project Fear wasn't just one side's strategy, so that anyone (going by my own experience) not already welded to some particular (mis)conception of either side had to fall back on some almost imperceptable quantum swaying of feeling, rather than a definite aim.
In this universe, it swung Brexitwise. My own local result was a mere percentile swing one way, and could so easily have been the other by some few thousand counter-swung votes. And the result would have been just as argued over, but perhaps more internally whilst the rest of the world grew bored and switched back to the impending US race much sooner.
Plus in that other universe you didn't have to trade in your "we're smarter than the US" card.
I mean, we have a party over here which has spent years developing a voter mindset of ignorance and fear of outgroups, then it backfired so they wound up stuck with a guy everyone hates... and this guy thinks brexit was a great idea.
Having London serve as an access node for EU finances with the rest of the world alone should be obviously good enough to stay, whether you like financial gaming or not, it's brought a lot of wealth into the economy which otherwise wouldn't stick around as it has. Free movement of goods and services and talent, this is something which seems obviously positive over here in the states. If there's something neat I want to do or buy over in... Arkansas (HAH!) I can just go over there. Same with any other state, even the ones I'd have to make a serious investment to reach.
Then we imagine a world where Texas got out of the US, and I want to go home and visit family in Dallas. Now I've gotta make sure my shit is up to date, deal with border regulations, all that nonsense. I want to do business there, I've got a load of extra hoops to jump through versus just setting up shop somewhere like Oklahoma (HAHAH!) or Alabama (HAHAHOH GOD BAHAHA!) or go for the coastal population centers.
Cutting off the ease and immediacy which all of that can be done seems like a remarkably stupid thing to do, and for what? Fear of Okies coming over here? I don't like them either, but I don't see how shooting myself in the gut is going to help anything.
So... what 'bout the UK in the EEA/EFTA?
Also, I read somewhere that invoking Article 50 requires approval from the Scottish parliament, though I can't find it again
https://t.co/CKOE12XIiFPer the House of Lords European Union Committee (11th Report of Session 2015-16, "The process of withdrawing from the European Union"). See paras 70-71, "The role of the devolved legislatures in implementing the withdrawal agreement" -- section 29 of the Scotland Act 1998 binds the Scottish Parliament to act in a manner compatible with EU law, and Scottish parliamentary consent would be required to amend this.