I've heard it said that Da Vinci's The Last Supper is the most parodied piece of art in art history. I'm thinking about a quite famous parody that replaces Jesus and his disciples with dogs playing poker. It's everywhere! I've never heard anyone complain about it.
And the list goes on and on and on.
You are dead on point when you mention that it's only when queer people come into the mix that the controversy starts.
The unstated implication by critics, of course, is that the very presence of queer people in a retake of Christian art must be sacrilegious or blasphemous -- as if we are too sinful or depraved -- or something like that -- to dare comment on the sacred.
A similar brouhaha erupted last year when the advocacy charity "Sisters of Perpetual Indulgence" were invited to be honored at a major sporting event in California.
The "sisters" are drag queens who have been doing HIV and queer charity work for decades. They are highly respected and loved around the U.S. Nonetheless, conservative Christian groups flipped their lids, insisting that the group's very existence insults Christians -- because drag queens.
But you know what? This is pluralism. We queer people get to talk and take up space on the public stage too. Christians are not the least bit shy about morally condemning us and teaching that condemnation to children. Pope Francis even calls us the Italian equivalent of "faggots" while banning us from the Catholic priesthood.
But we're not allowed to comment on religion through art parody? Seriously? That is just supreme hypocrisy.