You can argue the US military gets too much money, sure, but looking at cultural and voting patterns, I really don't think that's why people don't like to pay taxes.
Obviously public money has to be spent in good ways, but let's not misrepresent all government being about "military and pensions".
Could you explain what you are talking about here? Will the geriatric hordes smash their walkers through the glass of Apple's cube stores if they don't receive trillions in tribute?
If that family was made of civil servants or (god forbid) military personnel, you'll also have a strong feeling of resentment-fuelled rage as a bonus.
There's some value in pooling it like that, I suppose, but let's not kid ourselves. Social Security is a transfer payment system, not a retirement savings program, which is what it was sold to people as.
This is why the elderly come out in droves on election day. They can't trust the young'uns.
http://www.usgovernmentspending.com/piechart_2010_US_total
If you want to defend taxation, defend the things it actually pays for: redistribution from the young to the old and the military (redistribution from workers to non-workers is a distant third).