You don't consider gambling as bad but conclusion by combining the percentage of gambler suggests that gambling never have made anyone rich but instead it altered the situations of middle man into poor man. Bitcoin and gambling have lots of differences and we can't say that these are same as bitcoin investors always learn well about market trends and investigate about price chart after which they decide whether to sell or buy but gambler never search anything without query then put money and bet and rest of the things are then on good or bad future.
The journey may be different when connecting gambling with investing in bitcoin, because no one wants to bet just by relying on luck. Bitcoin has a much more rational concept and road map, where there are times when repeated cycles will take us to the next stage of achieving ATH, gambling does not have such a concept and road map, so it completely relies on luck. I agree with your statement, that gambling is very unlikely to make someone richer and even if there is, perhaps only a small group has a much stronger financial level.
Once you find the opportunity then don't waste time but select bitcoin as its better than gambling because once you choose gambling then if you want to leave it you will not be able to throw out gambling from your life.
In fact, investing in bitcoin is much better than gambling and if we want to increase our finances then we should choose bitcoin as an investment. There are times when we gamble but it is not a routine job that is done all the time, but rather as mere entertainment and perhaps the biggest focus should be more on investing in Bitcoin if we want to get much better financial freedom.