What does "indebt ourselves and our children" mean? Our children will be indebted to...other children. If Richie Rich buys a treasury bond, then Richie Rich Jr

What does "indebt ourselves and our children" mean? Our children will be indebted to...other children. If Richie Rich buys a treasury bond, then Richie Rich Jr. will be entitled to receive money from Johnny Taxpayer Jr. But this is just equivalent to increasing Johnny's taxes and reducing Richie's. Congress could reverse that with legislation. So, really, why should we care? Now if we had a time machine and were teleporting ventilators from the future, we might have a problem.