> Can't we just print more money to pay off the debt?

Indeed

> And there will be no consequences since we're the reserved currency for the world backed by the most powerful military in human history.

Yup, and it works until you're not the reserve currency anymore, which ... happened before quite a few times (Dutch guilder. French franc. British pound)

But hey, this will be in what ? 50 years ?

Half of us will be dead by then, so who cares?

Heck yeah! No problems here! Its future generations problem to worry about!