No, you are pretty precisely wrong. Elon and Gates made their fortunes in the software business but don't work in exactly the niche of AI. Exactly the same as Einstein worked in relativity and a bit in quantum mechanics, not nuclear physics. While AI and nuclear explosions are totally different, the level of understanding of the possibilities comparing now to 1939 is not all that different. At least you give no reasons beyond personal incredulity for the claim that there is no feasible way for this to happen in the next century.
The comparison to the risk of atmospheric fire is also precisely wrong. That was brought up as a possibility in the 1940s. The experts evaluated it, and concluded it was extremely low probability. Strong AI on the other hand is estimated by many experts to be very likely over the next century. (https://nakedsecurity.sophos.com/2015/05/27/1-in-5-experts-believe-artificial-intelligence-will-pose-an-existential-threat/ ) The main question is whether it will be a threat.
It is the next century or two that Musk, Gates, and others are warning of. And it is quite short sighted to dismiss the threat with 'there is no feasible way for this to happen' right now.