According to the Bible, any believer in Christ was a saint. I truely don’t understand all of the post-life rigamarole to give someone a title after they are dead. Besides, regardless of what we may think of a person here on Earth, only God truely knows their heart, therefore, the end decision on if someone is truely a believer, or saint, is God.
But, whatever, people can do whatever they want as long as it doesn’t violate my rights.
I can’t imagine how any proclamation of the Catholic Church regarding anyone’s sanctity (or non-) could violate your rights. You are legally and morally free to believe anything you want about anyone.
The term “saint” means “holy one”. I guess that the biblical writers had particular people in minds when they spoke of the saints, persons of high reputation who weres of judged on the basis of their works.