By the way, a traditional businessman like a baker of buns can also suffer from random events, but we are not saying that his activities are similar to gambling.
This difference does not seem to you fundamental?
2008 is not an argument in favor of that hedge funds play with luck - there are winners and losers in the market. Progress kills some of the industry and they withdraw from the market. This is normal. Yes, and you can look for the general position of hedge funds at a distance - most of them feel great while most gamblers go bankrupt at a distance.