All religions are cults. That does not mean they are bad. Political party's can be considered cults.
cult
noun /kəlt/ 
cults, plural
Actually, all cults are bad, because they require, by nature, for people to stop thinking for themselves.
The difference between a religion and a cult is how much control they put over your lives.
For instance, after my mom died in 1983, my brother and I stopped being Catholics or even religious. The rest of the family remained Catholics.
Guess what, we still get together for Thanksgiving, Christmas, summer vacations. We are even invited to church events, so long as we behave ourselves.
Now, take that same scenario, and pretend we were all Mormons.
Guess what, we'd be shunned, because that's what cults do.