That being said. I think it's a pretty decent plan. As you said, you can find people that like every singe expendature and think it should be un-touched. Therefore, just cut them all equally. As a former member of the military, I guaran-fucking-tee, there is 10% that could be cut from pre 9/11 budgets without a threat to national security.
I can't be as sure about other programs, but I just left a McDonalds and over heard 5 losers talking about how you lose your disability if you get a job and few other comments about how to keep the gubment money rolling in. They couldn't have been older than 20. My point being, I am fairly sure we could figure out how to cut 10% out of just about any government program.
I do think the cuts should be 10% per major area. It can be hard to cut 10% of your cable bill if you are already on basic cable. If my bill is $50, how do I cut out $5? Again, this was why the original sequestration was supposed to spur actual budget planning and cuts... 10% on every program may not make sense. But if we agreed to cut 10% from DOD, Medicaid/Medicare, and from the remaining 30% of the total budget, it would probably work out.
But what do I know...