The extent of the proposed cuts aside, You have hit upon some of the biggest hurdles to cutting ANY government spending.
(Of course campaign contributions from defense contractors are also a huge factor imho)
No one ever said cutting government spending is going to be completely painless. It is going to hurt some - and all the partisans are going to try to make sure it is the other guys who hurt rather than their guys.
I hate to imagine what we are going to leave to our grandchildren - all because we lacked the courage and the work ethic necessary to get our fiscal house in order.
I agree but then that raises the specter of trade offs. What's the ripple effect? How many more people end up on government assistance (though for some it will be short term)? Is this the right time for this move? What will be our cost when we have to rebuild? (And eventually we will). Will it heavily outweigh our current savings ratio?
The primary issue I think needs addressing is the (often) quadruple and quintuple built in redundancy inherent in our government, not the simple real checks but the obvious overkill. That would probably free up a third of our national budget which could then be partially applied where those checks are weak or non-existent.
People resist change in almost every aspect of life especially if the change is (or perceived to be) financially negative. Part of each state's representatives job is to bring home and keep the bacon for their constituents, it's part of the process so cutting spending that affects their state will meet with heavy resistance.