Unfortunately for the post, military is 3rd behind social securities and Medicare.
The issue is far more fundamental than "but ma military spending". And while military spending definitely contributes, the biggest problems are a hugely wasteful medical system and economy that pushes money away from the majority, away from taxes, and up to corporations.
Largely starving the country both in tax revenue, in political capital to make actual positive change, and the literal people as they stop living and start surviving more and more often.
Social security is not a tax though. It's a forced pension system.
We really need to separate that out in people's minds from a tax so that they get more angry when politicians try to make changes to make it pay out less. It's not that they aren't being nice anymore with our taxes, it's theft from our pension we contributed to.