Long-term this is a good thing imo. We are too dominant as a species and offering a same high quality of life to 10 billion people (in 2050) just doesn't seem possible. With less humans, the world would be a better place for the remaining humans and animals. With which I'm not saying that less humans alone will be enough to offer everyone on earth a high quality of life, it just would make it a lot easier to achieve that utopia.

"Livestock make up 62% of the world’s mammal biomass; humans account for 34%; and wild mammals are just 4%."