All day long i used to listen gamblers complaining how some slot machine is rigged, that they never get any money back and then at the end of the month when I checked, RTP was always above 90%.
Even if the RTP was infinitesimally close to 100%, the reason that a gambler loses is because their wagered amount continues to increase against games with house edges.Can't beat the eventuality of statistics, regardless of your variance.
(well, maybe you can get lucky enough in your life to beat the casino, but you would be in the minority)