I have Protestant friends who claim Catholicism is a cult. Name-calling isn't helpful.
At least those groups don’t worship multiple gods as mormonism does. In all my long years I have never heard a Protestant call Catholicism a cult, lots of differences but the basic eternal God, the Cross and Reserection are the same, not even close with mormonism.
If the word “cult” is defined by a group of like minded individuals gathered around some singular article of faith or opinion, then the word has lots its punch.
In the post Christian era of the USA, we have been divided into many cults—even cult movie viewers, so the word doesn’t carry the punch of insult it use to carry.
No, name-calling isn't, but laying out facts is.
I'm not Catholic. But comparing Catholicism and Mormonism doesn't work. Catholicism is Christian; Mormonism is not.