This is an often repeated point, and many proponent of population reduction embrace it.
I think that's completely ignoring our consumption patterns. We're totally up to the challenge of burning twice the resources with only half the population.
I love the first world perspective. It pretends to be erudite while being completely inhuman. As if "emissions" are something you could ever get rid of. Any excuse to avoid making their own lives more efficient or the distribution of resources more fair.
I have a tub in the kitchen sink to capture all dishwater, and make 4-5 trips outside to dump the water daily, into watering tubes that are six inches deep, around the dripline of each tree. Here in the SW US it is almost pointless to water at the surface, 90% or so is lost to evaporation within a day.
thats what revolutionary movements are for: to organize "everyone else" and physically purge the elites that dont care about the crisis affecting regular people