No, I read it. You're just not following me. And you are using "Tradition" in two senses, which is dishonest.
The theories on the JEDP sources of the OT and the oral tradition of the NT have been around for a very, very long time. They are theories by liberal scholars trying to discredit the inspiration of the bible. When people rely on them, they do exactly what Christ said in the verse I quoted from Mark 7 -- make the Word of God of no effect for the sake of tradition. The JEPD theories are totally rejected by Protestants. However, some Christian scholars uphold the oral tradition theory for the NT, but using an entirely different concept of "tradition" than the "Holy Tradition" of the RCC. These scholars are sucked into the theory, as it makes scholars an elite class of Christians. There is no real evidence of the oral tradition or the priority of Mark, which is how it all began, but it is all theory. There is nothing in the bible to uphold the theory. However, the bible relies on secular and outside sources constantly. That does not make these sources authority -- it is merely how an accredited prophets at times set things out. The important thing is not the source, but that the prophets were writing under the inspiration of the Holy Spirit and were verified as a spokesman for God.
When you argue for Holy Tradition, that is exactly what you do, you make the Word of God of no effect, you trash its true significance.
However, if all you want is unity, then please appeal to your local priest, bishop, and the Vatican, that they must give up Holy Tradition for the sake of unity. That will be a lot easier than trashing the bible with the Protestants. And you can also emphasize to your people as well, your argument that the truth is not important, only unity.
And however, it is obvious that you have not really studied the Protestant position on the canon and the bible. You cannot refute that position until you do so in depth. Otherwise, you just set things out that have already been responded to 100 years ago, or you set out the Protestant position invalidly. But it is not going to be easy to learn what is involved with the Protestant position, because it is a very long study to consider all the issues involved. I would say you should set aside a minimum of several months of study, if not years.