Actually I'm not sure about "destroying". Chimaev is indeed my favorite fighter for this fight but actually I don't see the mentality of a champion in him. I can say that Chimaev is an immature fighter. His last match against Burns showed when Chimaev didn't listen to his coach's advice. And if this was still the same Chimaev then the outcome of the fight would have been different. It's just that I still place my bet on Chimaev.
You will never know for sure what is going on with Chimaev's mind, and we will never know what may happen in the future for sure even though his mind is immature and he likely doesn't have a focused mind on becoming a champion for his strength alone has proven us that he may 1 day become champion for sure and for me, I always believe that Khamzat Chimaev even though he is not champion material or many is against him for sure that 1 day he can likely achieve that,
I will actually say that Khamzat is currently a better fighter compared to Kamaru Usman. I will actually agree with @owengtam09 that Kamaru Usman is well past his prime days. So I don't think Usman is going to be the winner of this fight. But I will also not say that the fight is going to be one-sided. In my opinion, the fight is actually going to be close. But in no way I see Usman coming out as the winner from this fight. If I recall correctly he lost his last two fights. so that is definitely not something which will increase the confidence going up against Khamzat.