The ritual practices and vessels that you disparage originated with the Jews and are described in the Old Testament. Recognition of and veneration of saints is based on proof of a life of heroic Christian virtue and of miracles credibly attributed to them after their death.
Galatians 1:8 But even if we, or an angel from heaven, should preach to you a gospel contrary to what we have preached to you, he is to be accursed!
The Catholic Church teaches "another gospel".