Arguing a debate from 0 to its conclusion is tiresome, but it can be short-circuited simply by explaining how this instance of the debate is the same as previous discussions, and (literally) linking to previous debates.

In this way, it's similar to how many disparate problems are reducible to the Travelling Salesman Problem. Once that reduction is discovered, the line of inquiry rapidly converges with those of other TSP investigations.

It's valuable to do so to bring others up to speed cheaply, and to avoid getting stuck on credentialism's local maximum.