But people will think they can win and they can profit so they dare to take loans with the belief that the victory they get can pay off all their debts, usually people like this are addicts and they are fools who are willing to do anything to keep fulfilling their desire to gamble.
And if all the money is gone then what can be done is to borrow money again or sell and pawn valuables to be able to pay off their debts or even use it to gamble again, there have been many cases like this out there.
someone who is addicted can think like anything even they can ignore the risk side which is actually a bigger chance of happening, when they run out of money to bet then there will be an urge in them to continue gambling with a thirst for victory and make them want to continue gambling no matter what, one of which is borrowing money to get money and gamble again.
also as you said by hoping for a victory that can cover all their debts and losses. If we predict to the root in the end they will sell the property or assets they own when gambling with the borrowed money also does not produce a victory, to pay off debts or losses experienced previously.