Of course creditors, sorry - english is just my 2nd language, so mixed the two terms up. However, for the rest, have you read my post? I explicitly said they won't "die" unless they are mismanaged, so of course they can go under. Otherwise they could obviously just do what they want if there is no chance of failure.
For the interest part - this is exactly what i said. The total amount of debt doesn't really matter that much to companies/states, but the interest rate and total interest that needs to be paid matters. Although interest rates increased heavily, this doesn't need to be a problem for companies/states as they have a lot of long term debts with interest rates way different to the current interest rate for different types of (short/medium/long term) debt.
I don't even want to say that "Utd are fine" or "Glazers are doing a fine job" regarding this. But just looking at the total debt and then concluding from it is wrong. It needs to be looked at in detail and then conclusions can be made by experts of the field. And with all due respect, this is not something that "normal" people (me included) can do, as multi billion dollar enterprises and their finances, equity/debt structure, ..., are highly complex. There is no general answer like "this debt/equity-ratio is optimal", "over amount x of debt is bad", ...