You will need to, firstly, be open to understandin ALL that Catholicism professes in Her Holy Traditions, rather than, seemingly, looking to produce objections to each point a Catholic specifies.
The Church is Christian because it was established by Christ and it follows all that He taught. But you can see from the record that He is God, without begining or end. That being the case, the earliest traditions are those given to Adam as being the first revelation of God to man! (Monogamous Marriage)
Throughout the Old Testament, God interacted with humanity and from time to time revealed further traditions and laws for those who choose to follow Him to adhere to. But the record also shows how humans treat Divine revelation and either misunderstand, abuse or ignore them. (See the history of Israel in the OT)
Finally, He Himself came down here personally as the final revelation of His will for humanity and left with us the “How” to attain Heaven. We are taught that The Church is The NEW ISRAEL and all are ‘Jews’ (Chosen) as there is no distinction between Jew and Gentile!
Therefore, ALL Catholic Traditions stem from and include matters from the very beginning of God’s interaction with His creation. For instance, it is FROM ‘Catholic’ Tradition that we know of the Creation account. I say “Catholic” because the Jews did not procalim this knowledge in the same manner The Church does, nor spread it indiscriminately the way The Church did and has. It is now global knowledge, AFTER, The Church disseminated its Scriptures in proclaiming the Good News and claims of its Holy Founder.
I’m sure that you have Catholic ‘traditions’ earmarked as being erroneous and want to debate them, but just be aware that all that you know of Christianity, and as a Christian, stem from those traditions!