The stock market is the easiest market to trade simply because unlike other markets, the stock market has a 1 directional bias (i.e. goes up more often than it goes down). Other markets like forex & commodities have a 50-50 probability of going up vs down.
This means that trading forex and commodities is harder than trading the stock market. Here’s the data to prove it.
https://bullmarkets.co/stat-stocks/
I have to strongly disagree, probabilities change greatly due to knowledge, risk control management and time. I do much better trading futures markets long term than stock markets because the margins are so low, hedging and dancing options around positions. But by using one year for stats, the data is useless.
Your data is like comparing it to brokers all make money and just have to sit and answer the phone, but the fact is if they don't have well funded large traders doing size, all the baby accounts won't even pay the monthly rent on building as they drain precious time to find larger traders away.