Its pretty simple, I think he would youd consider your answer to be proof of waht he said.
What exactly is your question? How will US pay for defense spending? Well we know how Kerry has been doing it - by gerrting rid of the defense part and the spending part, at least thats how he seems to have voted. The us military budget is what 370 billion a year or so? Its pretty big ad has always been pretty big, and we manage to pay for it somehow. Right now we are affording it and the tax cutsts with some deficit spending.
And lets be realistic here, its not that keery voted against some famciful "imaginable or conceivable" weapons only. He voted to gut the spending for many central systems, like M1 tank, F15 fighter and AEGIS cruisers/destroyers... His defense record seems to be taerrible.