The actions of Catholics is exactly what shows us how Catholics interpret Catholic doctrine.
Talk is cheap and what a person DOES is what they really believe.
So catholics can deny all they want stuff like how they don’t worship Mary, but when what they do directed towards Mary is the same things that they do when they claim they are worshiping God, they are showing by their actions, that they are worshiping Mary, no matter what sounds are coming out of their mouths claim otherwise.
Again, it is an irrational and vacuous position. Refuting the Catholic teaching because of the actions of a few Catholics acting outside of her teaching makes as much sense as judging a medicine by its affects on those who don't take it.