I get what you're saying, but I am leery of breaking the social contract and overtly start stratifying politics by generation because no one wins at the end of that process.
AoD
I don't think the argument about inter-generational inequity is requisite.
As a supporter of more robust social programs, I also favour paying for them in real time, particularly when the economy is growing.
The choice to defer raising taxes is a problem.
First, because it means the need to raise them may end up arising during a recession, which would make matters worse.
Second, because, the unneeded accumulation of debt is also adding fiscal pressure. Every added 10B, right now, represents about 400M per year in additional interest payments.
If, as expected, interest rates rise, even a bit, say 1% in near to medium term; that fiscal pressure would add 3B to annual interest payments, before any growth in the debt.
Put another way, had taxes been raised to pay for ongoing spending a mere 5 years ago, debt today would about 25B less, and represent a savings of around 1B per year that could be spent on social programs.
It would also greatly reduce the risk of large tax hikes or service reductions in the event of another recession.
Never mind the burden on future generations, I don't want my new-found benefits rolled back; or to face a larger than otherwise needed tax hike, to pay both for them, and for servicing the debt.