It’s very good question. Jinns are made of smokes flames and humans/man out of mud. Impurities in the fire makes the smoke. So in another word Jinns are purest fire. As we know black or dark mud represents fertility and excellent soil in the world of growing crops. Almost similar concept is the creation of men.
V21.30 allah also tells as about the Big Bang and how he created every living thing out of water. Don’t get confused dark mud has to contain or be in water to stay in it’s mudy state, so no contradiction there. Then allah gave the pure fire and the mud a life or ordered to be and it was.
These states of originality is where we come from, but it’s not a state we are in right now. Let me explain a bit more. If I make a car out of metal I collected from the earth and the say I created this car out of the sand and soil would you then say no. It’s made out of metal and other materials? Or. Why are we not still a sperm or in state of Leach like creature? Because we have an origin doesn’t mean we should remain that state.
And for more clarity. We all have in our body everything that is in the mud including precious metals. Like gold,platinum,iron,silver. And we know very well that these metals came down from space or was forged in conditions far greater then the ones we see in our world. Hence the saying we made of the same stuff as the starts.(star dust)
Do your self a favor read the Quran with sincerity and open mindedness. I’m sure you don’t read books with preconceptions and judging mind. Don’t be afraid. And may Allah guide us all.