On the other hand, Mormons and Romanists still share the most serious flaw in their view of God: that men may put their own Creator under an OBLIGATION to show mercy.
I can't seem to find that in my catechism, Brother...
I am not a Romanist. I am also not a Romanian. Please make a note of it.
Now, if you are referring -- using a childish and derogatory epithet -- to Catholicism, then I can assure you that Catholics don't believe that men, or anything created, can place God under any sort of OBLIGATION at all.
Only God can do that. If God promises X, Y, and Z, he's placed himself under an obligation.