Cardinal Cupich has made the point that respect for other persons begins with speaking about them in the terms they use for themselves:
“We have always wanted to make sure that we start the conversation by saying that all people are of value and their lives should be respected and that we should respect them. That is why I think that the terms gay and lesbian, L.G.BT., all of those names that people appropriate to themselves, should be respected. People should be called the way that they want to be called rather than us coming up with terms that maybe we’re more comfortable with. So it begins with that.”
Source: https://www.americamagazine.org/politics-society/2017/07/18/chicagos-cardinal-cupich-saying-gay-lesbian-and-lgbt-step-toward
Referring to a person who identifies as gay or lesbian as a "person with same sex attraction" is the rough equivalent of using the N-word for a person of color. Anyone, gay or straight, would want to avoid a parish where that sort of language is used.