Today, with a study that has been ongoing for most of the USA Space Program the frailty of the human body in the VOID of space is known.
In order for such ambitions to be realized there has to be significant research on Earth with materials that can protect human life. Those materials have not yet been found.
No one like Musk should be provided the power to play with human life as he has done the human brain.
I suppose Musk can always build his own hero wall for all those that sacrificed their lives for the purpose of human space travel without a clear path forward or the practice ethics that won’t allow such sacrifice.
Plutocrats are drunk on power. Capitalism demands that those with the most talent receive the greatest prize. That is fine if one has created a cure for cancer. But, the real prize is humanity’s Nobel, not the wealth, slavery, or oppression of an entire segment of human society.