(I made some corrections [1] to my upper comment to make clear that when I mentioned H-1Bs I intended to refer instead to must-work immigration pathways in general, including but not limited to H-1B and EB-3.)
The previous context included:
>> A lot of people would prefer if even family sponsorships didn't exist.
> And yes, many want to get rid of it, because it’s a loophole in the skilled immigration system.
From the start of US immigration law, the must-work immigration pathways have never been the only (non-asylum, non-TPS) immigration pathways. What is your basis for framing family sponsorship as a "loophole" to the "skilled immigration system", accounting for the fact that some immigration pathway (whether agnostic to family unification or specifically allowing family unification) has long existed separately from the "skilled immigration system"?
Do not let the following tangent distract you from my previous question, but: H-1B itself does not provide a pathway for "family sponsored" immigration. H-1B allows immediate family members to temporarily stay in the US as dependents using H-4 visas. A person who uses H-1B without intent of becoming a permanent resident is by definition not an immigrant. If an H-4 holder becomes a legal permanent resident, it is because their H-1B-holding family member can become a legal resident (i.e. become an immigrant) as specifically allowed by the H-1B itself, and being a legal resident or citizen provides your family with H-1B-agnostic pathways for becoming legal residents.
[1] https://news.ycombinator.com/item?id=46937673
