I do not agree with this theory but just for laughs the same can be said about corporate subsidies and tax cuts for the rich, how do conservatives justify that? It seems they only get angry about the poor getting help from the government and yet see little wrong with the banking industry, for instance, getting massive handouts and tailor made laws to protect them from their own incredibly harmful and short-sighted failures.
Treat all handouts as evil or be expect to be accused of being plutocrats or their lackeys.
As to the question at hand, it can also be argued that American businesses that have a lot of low wage employees also count on handouts to working people as a kind of subsidy for their lowball pay and benefit packages. What would happen to Walmart, for instance, if food stamp benefits were cut off? Since they are our largest retailer what is the effect of several hundred billion dollars disappearing out of their revenue every year? What would happen to their employees who can no longer afford to work there and can no longer feed their families? No, food stamps are every bit as much corporate welfare as they are for despised lazy poor people who work their asses off.
Only an utter cad would contend old people do not need or deserve SS and Medicare so we will move on to the relatively small group who fit the stereotype of an idle "parasite".
Every country has an element within their population who for whatever reason are unemployable, no way to legislate them away, even communist countries had a problem with the "lumpinprole" what the hell do you do with them? It seems the most humane thing to do is feed them to keep them from stealing, lock them up when they do and try to educate their offspring to be better but one thing you never do is ignore them or abandon them to hunger or they will eat the rest of us alive. Consider it revolution insurance.