"Over here it’s illegal to carry guns and take drugs, but there’s more of both on the streets right now than ever." is not an opinion.
When I give the official murder stats, that is not an opinion.
I'm sure that stats aren't 100% reliable and are subject to massaging, but I don't believe for half a second that they're so wrong that the UK murder rate is higher than the US. That's ludicrous.
As I said before, this whole thing of saying something without any evidence and following it up with I-believe-it's-true-so-that's-that is not only a problem in this country but exactly what Trump is trying to get away with (and is getting away with) in the US.
If I wanted to buy a gun with the hope of killing someone and getting away with it, i.e. without forensics finding that it was one I'd bought it the week before, then no I would have absolutely no idea how to do that.