yeah the federal government can essentially print arbitrary amounts of money through the federal reserve bank if it has control of it, yes.

the only way out (to prevent the federal government from having infinite, literally unlimited economic buying power) is to devalue the dollar in such a way that the dollar becomes completely worthless, i.e. its value goes to zero. but this will only happen if people stop accepting the dollar as a valuable currency, i.e. if people switch to using alternative currencies instead, like the euro (€) or something else entirely.