No, the fundamental difference between protestant and catholic is this:

Protestants do not have the physical presence of Christ in the Eucharist.

Regarding works/faith, catholics do not believe they earn our way to heaven. We believe that Christ’s sacrifice allows us to be saved, and that when people are saved they are compelled to turn away from sin in their hearts. Sin of course is still committed hence the need for confession. Confess your sins one to another etc. Jesus gave the DISCIPLES tje power to forgive sins (that which you forgive on earth is forgiven in heaven etc) - he gave that message to his disciples that they have the authority to forgive sins.

The bible says nothing about Mary “recognizing Jesus as her savior.” I agree with you that she did, but if you are going to go outside of scripture for your under of Mary, you can’t refute catholic understanding of Mary on the basis that it “goes outside of scripture.”

All of Marian doctrine is built on logical arguments that are scriptural. There are also traditions taken from the writings of those who lived in Jesus’ time.

Paul does not say faith alone. The way we are saved is through acceptance of Christ’s sacrifice on the cross. That acceptance is the first act we must commit. Christ’s love for us is unconditional but his salvation of us is conditional on our acceptance of his sacrifice.

You forgot the part where it says “the gates of hell shall not prevail against my church.”

Mary was born without original sin which is what is meant by blessed art thou among women. She had to be, so that she could be the ark of the new covenant and contain God.