It is no personal opinion when you can watch someone bow down before a graven image.
That is a clear violation of the second commandment, for the whole world to see, no matter how Catholics want to justify the sin.
So you are God now! An arrogant attitude that presumes to have the knowledge of God is a pretty serious sin.
It is still your personal uninformed opinion. Even if you don’t admit it. You can’t possibly know if someone is committing a sin from a bow. You do not know their intention.
Judge yourself.