Life is a RIGHT Mak, abortion is NOT!
I forgot Mak, you provided a voluntary process that might work, in theory. Plus do you honestly believe a drug dealer, a pedophile or even just a plain ol' lazy guy would go in and pay money for this supposed shot? All while these are the same guys who lack any self control? Or is the government going to pay for these shots? Plus track the population of ALL men, as a whole? AND with all of the privacy laws are already in place today? Plus the sexual diseases are not even addressed, protection is still mandatory if people want to sleep around. So what again is the purpose of this magic shot? So the same techniques needed today would need to be continued to be practiced?
Banning abortion would work because there are places around the world who have done it successfully. Yes they might not have the history of ingrained society like here in the States. Yet with knowledge comes understanding and heaven forbid we educate people before we sell them on a magic injection.