I realise that there are lots of erudite and entirely correct reasons against leaving the ECHR, but surely the main one to be repeated ad nauseam is "from the people who told you Brexit would solve all of your problems - how did that work out for you?"
Son is in the other room on the gaming PC and has been shouting excitedly at his friends online for about an hour now. I just went in to see what sort of violent nonsense he's up to and it turns out it's an extremely U-rated game about penguins on snowboards.