Why do Nicolaitan Christians falsely teach that Homosexuals are condemned and not going to Heaven?

The original and true Christian Church, to which Jesus Christ promised the fullness of God's truth until the end of time, has many homosexual members in good standing. They live their lives as God calls them to live, just like the heterosexual members. Sexual orientation is not a moral issue, since it is not freely chosen. Sexual behavior is a moral issue, regardless of one's orientation.

"Nicolaitan Christian" is an oxymoron. The pagan Roman Catholic cult is a prime example of the Nicolaitans. Catholics are NOT Christians.

Homosexuals that do not repent and ask forgiveness will not enter the kingdom of God. The alternative is hell.

Because that is what St. Paul taught.

These two scriptures refute you comment: 1 Corinthians 6.9-10 says,"9. Or do you not know that wrongdoers will not inherit the kingdom of God? Do not be deceived: Neither the sexually immoral nor idolaters nor adulterers nor men who have sex with men 10. nor thieves nor the greedy nor drunkards nor slanderers nor swindlers will inherit the kingdom of God".  There is no false teaching here.

another group of people to look out for, are the "BLACK racist" (cainites). homosexual groups should be sharply reproved because they ARE enemies of God and His righteousness.

Probably because their bible says gays are an abomination.