That’s the spin however debt payments are not dismissable whereas payments to government and citizens recipients are. If interest payments are missed what do you think that would do to the interest rates and funding of all future government spending programs -the primary recipients being Democrats? See, the interest WILL be paid otherwise the Dem party, platform, base and will end.
You seem confused. It is not spin, it is the law, hence the House passing a bill to force interest payments to the front of the line.
Your theory about which party would pay the price may be correct but is irrelevant to your previous claim that the treasury MUST pay interest first.