Cutting funding isn't a federal mandate. It's leverage to get them to do what they want.
I don't know where you're going with the states getting help from federal government stuff. Trump has offered help to any state that asks for it. I recall Governor Cuomo praising Trump for what he did for them.
Yes, I know what you're talking about, but unfortunately, that's not how things are being done. Trump left it up to the states, which is in reality how our system of government is supposed to be run. Like it or not.