This would simply made my day if I was there during that time but for me it is a waste of time to try to even argue with them as they could either be a troll or just a person who isn't open-minded at all. Spending your time arguing with them is something that you must not really focus on as Bitcoin time and time again would just make them eat their own words just like how JP Morgan and other companies have changed their views towards the crypto industry and Bitcoin in particular. At least now people who have believe Bitcoin during the early days are sitting safely on a profit while these guys from 8 years ago might now be trying to buy Bitcoin at 60,000$ a piece.