Did he skip the press conference? I wasn't watching. But he definitely didn't "pull a Lebron". What Lebron got called out for was immediately leaving the court without congratulating his opponents. Newton didn't do that.
They may well be morons, but that's not really a logically valid response. Leaving aside the question of whether the increase in the number of deaths is commensurate with the increase in the relevant population, it doesn't follow that simply because population increases by say 5% that the number of deaths from Cause X will also increase by 5%. As a society we attempt, sometimes with success, to the reduce the risk of death from all sorts of causes.