I have being trading and also gambling, all in a responsible manner as I can and I do agree that trading requires much skills and strategy to earn a profiting trade. Though I do disagree with you that gambling entirely doesn't require skills to make yourself profit, not all requires skills for with your luck you're good to go but in sport betting you have to knowledgeable about the sports you're of interest in and with your knowledge you don't get to gamble blindly.
And trading and gambling is a whole lot and we need to have boundaries because even when it comes to trading there people that are addicted we only lose more money because in that process that is when you see people doing revenge trading and that is one of the worst habit that are destroying traders and if you look at all thus things they are all driven by greed people always want more and the more comes with a huge risk and it sometimes work for them and sometimes it does not.
There are strategies that we need to use if you are gambling so is trading and that of trading is even more important than that of gambling because you have to learn how read chart that is very important. Because at first people think it's not important until they start losing money trying to guess the market and that is a very big mistake that every trader will make.