The RNC is fully bought in, at every level, that they can pillage and kill and steal from everyone else as long as they want and the courts will back them up and their voters which they are killing will back them up. How do you trust them to force Trump to actually FUND things? You can't.
(Reminder that the RNC is so power hungry they have been ejecting any Dem who play bipartisan for over a decade now. So even if you help them, in a purely selfish sense, they will backstab you by the next election as soon as humanly possible. They can't be trusted on any level it's bonkers!)