We only know what Jesus said because the Catholic Church, the Church He established, picked the books of the bible a few hundred years later, discarding most of the "books" of the day, and codifying a select few of them into what is now called the Bible.
The words of Jesus in the Bible are known to you only because of the authority of the Catholic Church which established Scripture.
The Church is clear on this issue. So, why do you acknowledge the authority of the Church in one part (Scripture) but deny it elsewhere (Tradition and Doctrine)? The authority is the same for both. If the authority can be questioned for one, then it can be questioned for the other.
You are just engaging in theological tricks here to win a political point. Politics determine your theology, and it should be the other way around if you really are religious.
All that aside, Jesus's words were nothing if not protective of children.