True there is an increase in knife crime, particularly in London, (from a low base) but action is being taken to get knives off the street, starting with custodial sentences for anyone carrying a knife.
39,000 gun deaths a year in the US. Action being taken in the US to deal with this problem. Nothing.
UK, one mass school shooting in 1996. Action taken on gun control, zero school shootings since
US mass school shootings, many each year. Action taken to protect children. Nothing. Result, more dead kids due to US inaction.