What do you think this position of Muhammad?

This is a great answer by the Prophet Muhammad s.a.s. The followers obviously had a bit of polytheist paganism in them by saying the moon bocked the sun because of the death. Muhammad pbuh corrected them simply by telling them the sun and moon are created things. This is clear evidence against people who claim Allah s.w.t is a "moon god" or that Islam has polytheist origins, or that Muhammad pbuh was anything more than a man. Although he was a great man and a great prophet of Allah s.w.t.

The death of any child is a sad event.

What are you implying? That the Muslims are polytheists