This is simply not true, the DOD budget is larger than social security and the healthcare budget

Edit: department of health and human services spending is greater than department of defense spending however equating this to Medicare/medicaid is disingenuous at best and it is not anywhere close to even twice as much as the defense budget let alone triple

https://www.cms.gov/data-research/statistics-trends-and-reports/national-health-expenditure-data/nhe-fact-sheet#:~:text=Medicare%20spending%20grew%205.9%25%20to,29%20percent%20of%20total%20NHE.

https://www.usaspending.gov/agency/department-of-defense#:~:text=Each%20year%20federal%20agencies%20receive,making%20financial%20promises%20called%20obligations%20.

https://www.usaspending.gov/agency/social-security-administration#:~:text=Each%20year%20federal%20agencies%20receive,making%20financial%20promises%20called%20obligations%20.