The money in circulation today ($USA) is 1,18 trillion dolars [...] the projected theoretical value is 1,18 trillions of $ /21 Million Bitcoins= $56,190.47 per bitcoin.
How about the us debt + the rest of the world currencies?
We're talking about circulation (aka: the $ that can buy gramms of gold). Debt is not in circulation (or it may as well is - who knows

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About the only thing that is in circulation is debt, as even cash is debt. Someone took a loan for it to be around!!!

Not necessarily true. Governments pay people for stuff all the time.
They do, but they become indebted to central banks or others to do so.
Also generally not true, most government outlays come from taxes. Only a small portion of expenditures in a given year are from borrowing.
In the US, at least, M1 is larger than the internal debt, so cash is not debt.
If the only one allowed by law to issue dollars, euros etc are banks (central and/or peripheral), and they only issue it as loans, then all money has to be debt, old or new.