By living chastely.
Perhaps taking a page from the heteros who rationalize their birth control, premarital sex and divorce yet take communion and consider themselves "practicing", homosexuals tend to rationalize things too.
That's the run of the mill sort, mind you.
Folks like Cervone like belong to that militant core of eco-femme lesbians and gays who seek to make open homosexuals "as common as candles" in the Catholic Church.
Perhaps taking a page from heterosexuals who believe that withholding their financial support of the Church will bring faith down to a matter of "The Economy, stupid," homosexuals believe that economics and secular political realities will force the Church to into accepting them.
As they put it ... "the reality will come first and the theology will follow".
Much like our legal system works today. But that's only to be expected. It's the same gramscian-marxist tactics being applied to destroy from within.