Non-Christian religions all teach various false things. Typically, they mix some good and truth, but what unites them is they each also attach key lies to the truth. And as widely varied as are the teachings of cults and false religions, they nonetheless tend to have important key similarities as well.
In this short but powerful video, you'll see that the teachings of Islam, Mormonism, Jehovahs Witnesses, and Progressive "Christians" all have some key things in common - all of which deny and contradict what the Scriptures of the Bible say:
https://www.youtube.com/watch?v=XBYv8irZvno