It's way too high, but it's not by far the largest. It's barely higher than national defense and not that much higher than Medicaid/health. And it's only the highest because of the artificial split between income taxes and payroll taxes, where this page only considers income taxes. If you look at all federal spending, Social Security is the largest, then Medicare, then interest comes in at #3.

Drunken sailors don't spent more than they earn, for the most part.