I have also similar points like you, about trading better than gambling. In trading we have less and smaller risk and if we compare risk wise in gambling, then we see in gambling we have full of risk, till the end, we don't know that we could save our money or not, mean we win or not. Also everyone know that winning in gambling also by chance we get it. So compare wise, trading is better to earn the money, but gambling is better to get fun and excitement.
trading better than gambling not only of the risk that smaller, but trading has a huge profit potential when we buy and hold it. Therefore I dare to put 1 bitcoin on trading, but not for gambling. because when it's gone it's hard to go back.