Taking a loan means that you have to repay the loan in any way, and investing in Bitcoin with a loan means that if you cannot achieve success from this investment, then you will not be able to repay your loan. Now the question is, Since you are investing in Bitcoin with debt, Is the success of your investment guaranteed? Bitcoin is a currency thats moves very volatilely, so there is no guarantee that you will succeed here, now that there is no guarantee of success here, then how can you invest beyond your means here? Even with a loan, which you have to return with more interest after a certain time? Making such a decision is definitely very foolish, market fluctuations can cause losses in an instant, and then it will be difficult to repay the loan, so you have to invest with what you can afford to lose, decide to invest from discretionary income.
I understand your sentiment bro, but you are actually missing the point in this context. Take note that you are not paying it back from your Bitcoin investment, so it's proper to say that you repaying back the loan doesn't depends on what what Bitcoin is doing in the market, so you will be paying back from another source.
And I just want to point it to you that before taking such actions, by investing with a borrowed money, the key things to watch out for is the terms and conditions for it, if it's a loan that can be repaid back installmentally and the repayment plan is spread across three years or more with an interest rate as low as 0.6% yearly , then it too good to ignore because these are one of the opportunities the rich utilize to build wealth overtime, but the poor choose to borrow money for consumptions.