Is one of the new rules here that assumptions or even being wrong about an issue is reason for deletion?
No. But you wrote a very harsh, accusatory, personal attack on people in regard to a very sensitive topic, making some very general, loose assumptions that may not apply at all and would therefore cause undo pain to a huge number of people. I do not consider that post-worthy. Add to that that OP’s cannot be edited, and that you are fully conscious when you are typing, leaving deleting as the only option.