Guiliani's logic flawed

Rudy was asked recently if he supported the use of public money to fund abortions for the poor. He said that he would if someone would otherwise be deprived of a constitutional right. Aside from the fact that nobody on earth can find anything in the constitution about abortion, there is certainly no implied right to have the public fund the rights that are actually there. For example, if someone says they can't afford a firearm to satisfy their 2nd Amendment right to keep and bare arms, is Rudy going to buy them one?