I would say Musk 100% agrees with the need to lower costs here, and they are aggressively trying to get there.
However, much better than low cost cars would be robo-taxis, as the utilization rate on cars for people is low that this dramatically changes the economics. Musk and others realize this, which is why they are pursuing it so vigorously.
Its much better for the poor and for the environment to have a fleet of $30k cars @ 70% utilization than a bunch of $10k cars at 5% utilization.
However, much better than low cost cars would be robo-taxis, as the utilization rate on cars for people is low that this dramatically changes the economics. Musk and others realize this, which is why they are pursuing it so vigorously.
Its much better for the poor and for the environment to have a fleet of $30k cars @ 70% utilization than a bunch of $10k cars at 5% utilization.