No the holocaust was the systematic removal of certain populations, this is an attempt to slow the growth of our species so we don't reach a point beyond natural stability.
The problem with this is that you really wouldn't be able to guarantee the future populations would be as ambitious, as more people are sterilized the population drops, meaning less sterilization would be needed, resulting in an ever fluxing relationship. And lets face it people like concrete regulations, we would wipe ourselves out a long time before we controlled our outrageous growths.
Peace