A lot of us would probably have rejected the "gift" of life had we been given the chance. Now that we have it we need to think deeply before we have children ourselves and, if we already have them, we need to accept the obligation of discussing the issue with them (or their children, our grand children) trying to convince them to think long and hard about it - not from their perspective but from that of the child they may selfishly consider bringing into existence.
How about if we campaign to make TBYF (Think Before You Fuck) as popular as TGIF? Maybe we should start wearing buttons or T Shirts with TBYF in big, red letters stamped on them (see the images). Pass them out free of charge to all secondary school kids.