If we allow "Tradition" to be equal to Scripture, then you have to allow the Mormon their Book of Mormon, Doctrine and Covenants and the Pearl of Great Price as equal to Scripture.
Christianity rejects these extraneous writings as they are 1) not Scripture, 2) contain contradictory teachings apart from Scripture.
Actually, that’s not the Catholic belief. I posted the actual teaching of the Church about two posts back. It it not about “Tradition” at all, as you can see if you read it.
That is patently dishonest. YOU don't get to say what the constitutes Holy Tradition, just as you don't get to say God commanded what He didn't.