#1 This is a complex question which first assumes there are such people as “homosexual” people and “heterosexual” people; that is not evidenced in the research. Instead, as Nicolosi states, there is only one kind of sexual person, people with naturally opposite-attracted erotic desires. Some have had emotional wounds which result in their perceptions of themselves and their perceptions of others to be filtered to the extent that their God-given erotic desires mix with their God-given same-sex needs, i.e. “people with a homosexual problem”. If the Church intends to reach out to the afflicted, these are people they need to be reaching.
#2 There is a difference between people who experience same-sex attraction and those who practice prohibited homosexual acts. The Bible is clear that homosexual erotic acts are prohibited; it is also clear that anyone can be justified and sanctified by the redemption offered through Jesus. It’s not up to you who gets into the Church, it’s up to Jesus, and He prayed for us not to be divided.
In general, I suggest anyone asking or wanting to answer these questions read The only 3 things I wish my straight Christian friends knew about homosexuality.