2: This genetic information is fed into a purpose-built AI (not an LLM) that’s trained to identify the particular strain of cancer and match it with a custom-designed drug cocktail that will target that very specific cancer mutation perfectly.

The "trained to identify the particular strain of cancer and match it with a custom-designed drug cocktail" is the magical thinking part of your idea - basically the "???" step of the three steps to Profit of the underpant gnomes.