I appreciate your thoughts are well meaning but I think we can largely ignore the “reasons” that some dickhead thinks it’s right to go blow up some people they’ve never met nor that have ever done them any direct harm. In short, and to paraphrase the kid laroi - fuck all of their “reasons”.
If they’ve got a problem with the UK selling bombs to wherever then go blow up BAE systems or target their employees. If they’ve got a problem with UK foreign policy go after the politicians/advisors/armed forces or whatever. You don’t go try and bomb a bus or a hospital or a fucking concert. Because eventually when we see one of their hospitals get taken out by a wayward bomb or we see their little kids suffering we’re going to think meh and donate our money to the three legged donkeys instead.