I think that in some moment every gambler thinks he has developed a strategy that helps him to get winnings or at least to minimize losses. That is usualy in good moments when bettings go well.
But actually at the end it turns put that it has nothing to do with strategy but just good luck and a bit of experience but rainy days need to come
Once you've get obsessed with big winnings and focused only on so called strategies gambling losses its charm and might become dangerous for you.
I agree with you that strategy doesn't always help people win at gambling. Sometimes good strategy can increase your chances of winning, but it doesn't always work.
Also agree with you, that people don't win very easily by gambling. Unless his luck is on his side but sometimes strategy plays a good role. Which is why we bring strategy to the fore.