And the catechism? Tread carefully when you hold your judgement stick, friend...
Yeah, I keep tripping over the darn thing and whacking myself in the head.
The Catechism is a product of the Magisterium and Holy Tradition. Which are both valid sources of dogma, along with Scripture, for Catholics. So the objection given does not "backfire" on us.
Only Protestants believe in "sola scriptura," so only Protestants are hypocrites when referencing their own extra-scriptural sources and traditions.
SD