Betting on a government-granted monopoly is still a bet. Just as if I bought stock in a company that thrives because it has a patent that may or may not be overturned on appeal, or a monopoly that might be smashed due to an anti-trust action.

Investments often result in money lost, that's life - as someone that's been in the market for decades now, yes, I do think it's on you to be aware that black swan bubbles exist, and you'll get wiped out if you're all-in on one when it pops.

If you can't handle the risk of your investment going to zero, hold low-yield bonds, cash, or gold.

I think all investments should have risk, and if the government bails people out then there's all upside and no downside, why wouldn't banks exploit that financially to the extreme?

I think it might be desirable to take out insurance on the asset though as a buyer. It could be an interesting market too.