All strata of British society have different and valid reasons to say in, or leave. There are some pretty hefty consequence for Ireland in the event of an exit (Northern partition becomes an EU border, trade-wise the republic is still a regional bloc of the UK economy, etc) but personally and politically I think the rupture would be welcome. Despite all the bluster, electorates everywhere are entirely conservative though so I don't see us facing the abyss any time soon
It's always sort of quaint to watch EU referendums from Ireland where peculiarities of our constitution means our betters are forced to scare the shite of us on the issue every five years since Maastricht. Speaking from that experience, I expect that for all British exceptionalism that surrounds this issue, voters will fall into line and accept their place. If the Scots bottled it, then the English don't have a chance really. The interests of business who benefit from full membership informs the same logic that governs Daily Express fuelled chat on a pub high stool and won't be too difficult to turn around. That bulldog spirit has always been a paper tiger, splendid isolation was an elite position and the elites are firmly to the technocratic hell that 'Europe' stands for now. It suits most of them just fine.
There are some pretty repugnant individuals who in fairness talk a very good game regarding the EU and Britain's membership. Not Farage but the old style Edmond Burke devotees who would have been his, less vulgar, ideological OGs. Years have been spent whipping up the existential crisis but it will all end in retreat, the out camp are chasing a past that never existed while the in camp hoping for one that will never arrive, in the present course of action at least. I just wonder what will replace the EU dividing wedge once that, most effective, bogeyman is off the table.