You won't get any argument that spending needs to be cut. But it isn't so much taxes that need to go up as tax revenue needs to go up. Those are two different things. The question is what is the best way to raise revenue. Tax increases, especially in the long term, do not necessarily mean that tax revenue will go up. Tax cuts can increase revenue, especially in the long term. Static vs. dynamic analysis.
Also, you have to temper that need with the more immediate need for economic stimulus, which we really haven't had yet. the single best economic stimulus is tax cuts. Tax increases will only worsen this recession.
The welfare, medicare/medicaid and social security systems are ulimately unsustainable; textbook Ponzi schemes. In the long term, they will have to be phased out (or at least changed dramatically to be sustainable).
You should look into Paul Ryan's proposals. He is the only representative (in either house as far as I know) who has proposed and pushed a realistic way to balance the budget and reform these systems. He is someone to keep a close eye on, IMO.
In fact, the GOP (at least in the House) have started adopting his "roadmap" (at least in part) for campaign purposes; a very wise move. You can read more about it here.
Yes tax revenue as distinct from the tax rate has to go up and spending down
In my own case I'd rather see a VAT rather than more points on the state and federal income tax
And the difference between SS and a ponzi scheme is that SS recipients eventually die