Elon Musk has many children with many women, some of them paid very large sums to bear them.  He says his purpose is to help stave off population decline due to falling birthrates.   A more likely motive is to multiply his own image.  It is a technological solution to depopulation, like a photocopying machine:  There aren't enough children, so get lots of women pregnant.

Needless to say, this is not kind to the children.  Human children need a mom and a dad, not a mom and a rich sperm donor.  The moral solution to depopulation would be to marry, have lots of children with one's wife, and encourage others to do likewise.

Earth's creatures have two ways to continue the species.  Some, like tapeworms, have huge numbers of offspring but invest little or no time in any of them. Most of the offspring die, but a small percentage of a huge number is still something.
Others, like humans, have a fairly small number of offspring compared with those others, but lavish a lot of personal care and attention on each one.  A far greater percentage of this much smaller number grow up and mature.

If only Mr. Musk would think less like a tapeworm and more like a human being.