My advice is the same with your advice. I don't like loans. I don't like borrowing money. I'm not comfortable knowing that I owe somebody a certain amount. But, who knows, if ever a time comes that I will have to borrow money, I might. However, it will never be for the sake of investment. It might be due to emergencies.
But if somebody is to borrow money for the sake of investment, Bitcoin is a better choice especially in the middle of a bear season and if it is for long-term hodling.
Loans sometimes is necessary in the life of a man especially when the season or period you are facing is really tough, i would guess nobody likes to take loan and especially not for the purpose of an investment you are not certain about having profits. Sometimes a loan requires an additional interested for a specific period to pay back and you are expected not to violate the time limit given to you so if you now used this money for a crypto investments, even if it is bitcoin, who will know when or whether even if you will have a profit to pay back the loan. And if you use the borrow money for a long term investment in bitcoin during the bear season it will be better but who can loan you money for such long period of time.