My point is that we can't simply change subsidies from corn to other things without thinking about the other things that would need funding in order to do that. I personally don't think all of it is bad: It is a food and feed crop, after all, but I think we could do with more variety in such crops (not so much reliance on corn, and definitely not for ethanol)
I don't think anyone arguing that subsidies in general are bad, just that subsidising corn is bad...