<< there would be no RKBA and therefore there would be no guns >>>

As someone else has commented: you are obviously an educated man with a viewpoint worth listening to, but (and no offence is intended) that is an incredible statement.

there WOULD be guns. Britain has never had a second amendment and manufactures no guns; but it's shootings are rising. The argument against gun bans is very simple; 'they don't work'.

On a campus of 24,000 students do you really think there were no drugs? no illegal immigrants? no banned books or films? So what is this magical property of guns that they alone can be stopped at the border?
If that troubled boy had been in Britain he'd have simply used an illegal gun.
Simon