Nor effective users of foams, sprays, jellies and jams, plugs and rubbers. Or even pills. ((((Sigh.))))
Which means the only options which might have a chance of being effective, are implanted birth control (IUD, Norplant, etc) or sterilization.
That, or letting nature take its course with mass starvation, which is what will happen when the economic system which allows mass charity to feed them, finally collapses.
Blocking measures you consider morally dubious, will eventually guarantee an outcome you will consider morally horrifying.