Sure it is. It seems sufficient for the anti-Catholics here, why should it not work for me?
Well, maybe I’m just a neophyte on these threads.
But in past threads I’ve seen that the quote-unquote ‘anti-Catholics’ have tended to have much longer posts with citations from Scripture than the Catholics have.
But back to the point, if you want to be taken seriously, a ‘he did it first’ is not a very effective argument.