I find it weird we worry about a “Malthusian” catastrophe still. The theory being proposed in 1798. What is the Information Age version? That deals with, “when do we kill the earth by our attempts to get everyone a cellphone?”
Just because we avoided the early catastrophe doesn’t mean Malthus was wrong.
At some point in the future we need to focus on farming ocean plants that recover the minerals we have been leaching into the oceans for the last few hundred years. Once we can close the loop on phosphates we can start talking about post-industrial-revolution population levels being sustainable.