If you trade with emotions so yeah, trading and gambling are the same. But if you know the basics, you understand the only mutual thing is the risk.
I think you overlooked, I had explained above that EV- games predominate in gambling while trading other than spot are compared to be similar because they are based on chance. Some EV+ games are there and we also have spot trading both these groups require skills.
I think I will have to disagree with you on your statement that any other trading that is outside spot trading is based on chance, other trading types, like futures, margin and so on, are not entirely based on chance, it all depends on who is trading and how knowledgeable and good he or she is, traders who have probably traded the market for a long time and understand it, and also have the technical know how, to determine which part the market is headed, are sure not trading based on chance..
What i do consider trading based on chance, which is no different from gambling, is when some one with no knowledge enters a futures market, place orders and deep in their head, they don't know exactly what they are doing, in-fact, they within themselves know that they are just guessing the market and hoping they are right with their guess, this is what i call trading based on chance., which equals to gambling.