"The crew members of a ship at sea are often troubled by a sudden unexplained change in course. However, they trust their captain and don't call the change an unnecessary secret unless they are planning mutiny. ..." Sab, above
Yes, but the end of every single 'voyage', as you have symbolically referred to human lives/affairs, is ultimately death.
You still have not addressed the reason that your hypothetical "god" would 'create' tsetse flies with a kill-rate of around 250,000 to 300,000 humans - killing OFF those special little "cherries on the top", as you mentioned above - your concept of 'gawd' has very harsh treatment of those supposedly "created" AS the supposed "cherry" on top...
As to dominance of the earth... In terms of geological time, humans have only been around for a mere blink of time - and based on their current, collectively delusional behavior patterns based upon the concept of some "magickal" being who views them as that special little "cherry" on top, coming to "rescue" them....
Ain't gonna happen. Which means that the human race is probably NOT going to be around for any great period of time. Not like the dinosaurs, who were collectively around for well over 100 million years...