You should know better! Catholics, as well as the Orthodox, have never been sola scriptura. There is evidence from the constant usage in the West, at least, that this is a continuation of an authentic Apostolic tradition.
I'm not arguing sola scriptura.
I am arguing a specific point namely that the Roman tradition on this matter, namely that celibacy is MANDATORY for all clergy, cannot claim a scriptural basis or the basis of a written apostolic command. The Eastern idea that marriage is an option for clergy clearly does have support both from the Scripture and tradition.
I have never argued that the Roman Church cannot order its own life. I simply believe that they have made a mistake in completely eliminating one of the options (marriage) for clergy when it is clear from the New Testament that all Christians could choose their path in this matter. We in the East are in the same boat when it comes to Bishops. We cannot say there is Scriptural warrant for our excluding married men from the Episcopacy, we can only say that it is a matter of tradition and discipline.
Even though in both the Roman and Orthodox churches the idea of sola scriptura is not central it still does not mean that the teachings of scripture are not central. In the particular matter of clergy marriage both of our communities have the burden of proof to explain why we have chosen to do what have done when it is clear that in the New Testament marriage was an option for all orders of clergy.
There is no question that celibacy for clergy was a part of the ancient tradition of the Church. But so was marriage. The problem is when you take one part of the tradition and make it the whole which is what the Roman Church, and to a certain extent the Eastern Church, has done.
Ironically, when I was a Protestant seminarian I experienced something of the opposite when a friend was denied a pastoral position because the parish believed that as a single man he did not properly exemplify Christian family life. They were in err on the opposite side for the very same reason I believe the Roman Church is erring on the other.