... because he wants people to think they need the government's help with everything. Without dependency or at least the perception of need, socialist programs hold no sway over popular opinion.

For states, it's outright blackmail because if they take the government subsidy, they are subject to the federal requirements for that money. The more you take, the more you are dependent, the less freedom you have, and the more control the federal government has over every aspect of your life.

That's why.