When you state that Catholics use Saints or Priests as intermediaries, that is considered judgmental because you are accepting those things as fact when they are not.
Not saying that you meant it as judgmental, just shows that we really don't use an intermediary.
We don't worship statues, we don't consider Mary as divine or Worship her, we don't confess TO the Priest, we confess to God, through the Priest.
We would agree 100% with John 14:6.
Because I don't think you asked in a bashing intent, I will give you some advise on understanding the Catholic faith, I have some insight because I used to be Protestant my whole life up to the age of 42 and then became Catholic after 20 years of studying the faith.
1. Take what Protestant Pastors say about what the Catholics believe with a grain of salt. Think about it, they are not Catholic, most never were Catholic and many only have a year or less of serious Theology study. In the same way you don't ask a Tennis coach the details about Football.
2. Get out your copy of the Bible, turn to the New Testament and read it along with an impartial study guide (does not have to be a Catholic one) but one that explains the meanings of each book, who it was written to and why.
3. Get a copy or abbreviated copy of the Catechism of the Catholic Church and read it. The Catechism is not a supplement to the Bible, but it does give all of our beliefs and the scriptural reasons for them. It applies the Biblical principals to our modern life. Catholics do have beliefs that are not in the bible, true, most Christians do as well. The Trinity is never mentioned in the bible for instance. BUT there are no Catholic teachings that go against the Bible.
If you think about it, did Jesus leave us the Bible? In a way yes, it was definitely divinely inspired with the Holy Spirit, but the New Testament was not compiled until 300 years after Christ, and it was compiled by the Catholic Church. So Jesus had to have a reason for not just the Bible, but also his Church and all the Sacraments to keep us in the Grace of God even though we are imperfect.
Peace and God Bless!