I think when we use the word "debate" like this, we're doing a huge favor we don't owe to a group of people who are — in bad faith — not acknowledging a set of facts. Just because a group of people hold some belief doesn't make it valid. There's no "debate" over whether vaccines cause autism, there's no "debate" whether climate change is real or affected by humans, and there's no "debate" over whether slavery was a central issue in the Civil War.