I’m sorry I cannot explain the technical details so that you can understand them. I tried.
I’ll try an analogy. Cooking oil comes in plastic bottles. Fruit juice comes in plastic bottles. The fact that both come in plastic bottles does not mean that the invention of fruit juice is in any way related to the invention of cooking oil. The plastic bottle is just a way to deliver them.
In the same way, mRNA is just a delivery system. Just because modified spike protein and the Cas9 protein are delivered using mRNA does not mean that those proteins have anything to do with each other.
No dear, you denied that there was any connection between mRNA and CRISPR when it is an established fact that there is. It is also an established or stipulated fact that the COVID shot implements CRISPR technology.
The two are indeed connected. Please stop dodging or denying this.