Titantites, what you posted may be the core of the issue Catholics have.
As Catholics the basis of the faith are the twin pillars: Holy Scripture and Sacred Tradition (the Church). The basis of Protestant theology is Holy Scripture alone. If a Catholic were to treat the basis of Protestant theology (Holy Scripture) with the same type of vitriol that is used concerning half the basis of Catholic theology (the Church), I would guarantee that the poster would be removed, because I doubt that calling the Bible the Whore of Babylon etc. would be allowed. That person would automatically be labeled a troll and gone.
I believe that is where the double standard presents itself.
And Catholics have great reverance for Holy Scripture and won't be denigrating it like non-Catholics denigrate the Church.
You're on the right track, but I think that it goes deeper than that.
sitetest