Said with an air of authority despite plenty of evidence that single person LLCs have a veil that is not pierced by the law.

The proper answer is, consult the precedent of prior cases in your state, that will tell you how strong the LLC holds up in any particular jurisdiction. A lawyer in your area will also know this better than a lawyer in other areas. It’s not a one-size-fits-all answer, and in general the LLC typically holds up well. Regardless of the number of members.

What if say i involved a few family members (or other trusted people) to be "partners"? Will the law still treat it as me the individual?

Courts take a very dim view of smart ass or "technically [X]" nonsense. It's one of the advantages of actual courts and law vs. crypto "contracts"