You said: And Protestants would say the same about some Catholic beliefs.
Yes they would...and do. But they are wrong and we are right, but not because of our own merits, but those of Jesus Christ who stated to the Apostles: “Teaching them to observe all things whatsoever I have commanded you: and behold I am with you all days, even to the consummation of the world.”
(PS..note He did not say to teach them to observe all things the Holy Spirit will cause to be written down in Holy Scripture...but what I have commanded you...just before He guarantees His protection to His fledgling Church. Just more proof that to follow sola scriptura is evidence of being on the wrong track.)
And it is far less of a leap of faith to believe that those things He commanded were written down by the apostles and were not the creation of some Holy Traditions. That statement does not demonstrate your claim of any legitimacy of Catholic traditions.