I read over the FTB website, which you quoted in your top post. It says under the question "who is a qualified taxpayer?" and the answer includes:
A disregarded single member LLC that is owned by an individual.
Later is says on the same FTB website under the question "A qualified taxpayer is NOT a Disregarded business... EXCEPT FOR A DISREGARDED SINGLE MEMBER LLC THAT IS OWNED BY AN INDIVIDUAL".
I agree that it is a bit confusing, but according to the FTB website, there are 2 places where it says a SMLLC that is owned by an individual DOES qualify for PTE election. Please give a site or some reference that contradicts this position.
Based on this, I have manually calculated the 2024 PTE estimate for the SMLLC and manually included those instruction in the client cover letter since Lacerte does not have an option available.
