You know where else I used to see exhortations for us to be “open-minded”? In the climate change denial threads we used to have here before such discussion was banned as a tired old topic that never led to anything productive.
The term doesn’t mean what you seem to think it does. Open-mindedness means being willing to to consider new facts and being willing to modify an existing theory or conclusion as justified and supported by new information.
Open-mindedness does not mean a willingness to discard proven, incontrovertible conclusions based on a vast wealth of unquestionable evidence in favour of someone’s uninformed, unsupported, and totally baseless opinion.
The frustration you’re seeing here (which you choose to attribute to posters being “assholes”) is because even though it seems strange to be asking the kinds of questions you’re still asking 23 years after the fact, your questions were nevertheless answered, and yet you keep ignoring the answers and droning on about your unsupported beliefs. If you were actually open-minded, you would act the way I just described: consider the facts being presented to you, and when you find that they disprove your beliefs, change your beliefs.