Gambling and trading are two different things, only think when you use maximum 5-7 leverage for trading. If you ever use leverage of 10 or more, it is completely gambling. However it doesn't take much time to trade but it takes a lot of time to become a good and expert trader. Honestly, investing is much better than trading, it is profitable in the long run. However, enough knowledge and skills are needed to trade, especially the importance of technical analyses.
No, futures trading is inherently gambling, and a disguised form of it, regardless of the leverage you use. Once you choose to trade future and use leverage, it means you have a mindset of wanting to get rich quickly, and that is the mindset of a gambler.
However, I agree with you that long term investment is the best option, even spot trading cannot compare. Long term investing does not guarantee absolute profit, but it increases the chances of success and significantly reduces risk compared to trading.
Are you actually qualified to make that statement, or is it because as PLEBS we can't make consistent profit because we don't actually know what we're doing EVEN AFTER reading all the trading books and going through different trading courses?

It's mere gambling for those people, especially PLEBS like US, who don't have an edge in those markets.