Are there current Christians who are also involved in homosexual practice? Yes. They are backslidden. They can be forgiven. They are not lost.
Are there practicing homosexuals who have refused to acknowledge that their homosexuality is a sin, who think that attending a church service is Christianity, and who call on Jesus to bless their mess and leave them alone? Yes. They are lost. They are not Christian.
BUT....they can be saved if they call on the Lord to save them.
So there is a point at which you would say they are not of "us all"?