To take the company private, the lenders require an interest of 10% and 10% principal
Some PE company (or the CEO, whatever) thinks they can make this work, so they come up with $10M of principal, take the lenders money and buy the company. The first thing they do is sell as many of those underlying assets as they can to pay down the debt. You now have a company that has $5M a year in earnings before debt, $10M in assets (the principal, serviving as the required reserve for the lenders), and $50M in debt, with a debt service of ~$5M a year (so really 0 earnings).
If the the PE company does a great job managign the company and the economy is good, so they double earnings to $10M, then the company is now worth $50M ($10M in income x 10 + assets - debt) and the PE company made a 5x return already (FYI- I know I'm abusing my financial math, fake numbers, but its illustrative).
Now lets assume they were wrong and a global pandemic breaks out, and the companies start losign money to the tune of $1M a year. If the company had stayed publicly owned, they might have to cut their dividend and burn through reserves, maybe sell off some assets, but other than that all their employees and the majority of their assets are probably fine. The company's market cap is a lot less, but shareholders don't go to zero eithier.
The world where the company went private in an LBO? That $10M cushion runs out in less than 2 years. They are bankrupt. They might get a few more chances to restructure debt and such, but eventually the lenders give up and liquidate the company a la Toys R Us. The employees get fired and local landlords lose tenants. Pension funds disappear. It's not fun.