It is %100 active, there is no logic that would consider this passive at all. We are talking about actively betting, you can't just bet once and leave it be, you have to keep on betting which means that its an active income. While I also think that its a long term loss, meaning that if you keep on betting forever, eventually you will be at a loss, it could be from the first bet, it could be your thousandth bet, but eventually you will be at a loss without a doubt. This is why I honestly suggest you to avoid such a thing, its not going to give you a good return, so do not do this for income, do it because its fun.