Because silly, you aren't Catholic!
Sure I am, in their eyes. I was baptized one and as far as I recall, they still think that because of the they can lay claim to my life and my salvation.
BTW, because I was baptized Catholic and have dissociated myself from their church, they think that that guarantees me a place in hell as a special kind of heretic unless I repent and return to the church.
UNMITIGATED BALDERDASH.
Authentic Christians of every label are part of Christ’s Body, HIS Church Universal. Thankfully, there will likely be SOME Roman Catholics et al in that number.