Homosexuals who fully intend to continue their active sinning lifestyle and whose main interest is in changing the Church's position on homosex from both the outside and inside should be kept out of the Church.
I think we need to define terms. A person with same-sex attraction is referred to as homosexual.
Unfortunately, that term also has the implied meaning the individual is engaging in homosexual activity, without any intention of stopping.
In my posts, I intend to mean those with same-sex attraction who wish to live a life ordered to the will of God. Like many sinners, they may commit sins of sexual immorality, but seek pardon and to conform their lives.
Certainly, there are those who seek to destroy the Church, among them, various militant homosexual groups. We should vigorously oppose them. That said, we should preach the Gospel daily to them, even if we have to use words.