The answer is no. Mormonism, the Church of Jesus Christ of Latter Day Saints is not a cult. They are a denomination of Christianity, no different than any other denomination of Christianity like Protestants or Baptists or Methodists. They believe in the same things that other Christian people believe, except that they believe in modern day revelations. This means that they believe people can still receive divine inspiration from God. Many of the additions to their version of the Bible come from revelations from the first prophet of their Church, Joseph Smith, who was also the founder.
While people of the Christian faith as a whole have not had to deal with discrimination for hundreds of years (there was some nasty business with the Romans), the Church of Jesus Christ of Latter Day Saints has had to deal with some persecution in recent history and there is a lot of misconceptions about them nowadays. For example, in Missouri in 1838, the Governor of the state issued an executive order for people to literally hunt Mormons. No, that is not an exaggeration, and no, you did not read that wrong. It was legal to hunt and kill Mormons in the state of Missouri. I believe the word the executive order used was “exterminate,” as in exterminating Mormons. It was that or drive them out of the state, and they were driven out of the state, with state military forces. It was not until 1976 that the order was actually repealed.
There are a lot of misconceptions about them, like the idea that they practice polygamy. They do not practice polygamy. They are not in a cult. They are just regular nice people trying to go about practicing their religion. You shouldn’t discriminate against a person because of their religion. This is a basic concept that should be applied to everyone and every religion. While Mormons do not face massive persecution today like they did in the 1800’s, there are other religions, like Islam, that do. It was not right to hunt down Mormons then, and it is not right to do the same thing to Muslims today. We need to remember our past and learn from it.