Is it really consistent to posit a spatial universality, and yet reject Vatican II nonetheless?
Has any other council exceeded Vatican II, in regards to the proportion of prelates that were in attendance? Or the proportion of theological consensus?
Well, spatial universality is bible, it is the foundation, it's how the faithful know what the truth is, and in knowing what the truth is, we know truth from error no matter the source. We reject V2 because we know it preaches error based on what the Church has always taught, i.e. based on the magisterium of the Church.
Last Tradhican used a marvelous analogy to exemplify this:
"U.S. Treasury agents who specialize in forgery detection, when they are being trained, are never shown any forgeries, they are strictly immersed in learning every minute detail of the real thing. That way, they can spot the forgery instantly..."This means that Catholics have been trained to know what's right since Pentecost, so spotting the forgery is or should actually be the norm - but many of the faithful accept the error, in part because it's what they really want and in part because of the source.
I don't know about the proportion of V2 prelates and theological consensus vs other councils, but it seems like Trent would be comparable.