Could you cite the Canon law that states that sodomites are ex-communicated?
Oh, so sodomites do NOT automatically ex-communicate themselves.
You need to tell your fellow Catholics, with whom you are supposed to be in unity under the teaching authority of the Catholic church.
Then perhaps you could also answer the question as to WHY they haven’t been ex-communicated by the church. Doesn’t it have the ....um.... backbone to do it any more?