Those subjective words like "outmoded" and "outdated" - social Darwinism at its finest!
IOW, because something was a certain way in the past, it must be bad or wrong or stupid. Progress means whatever way we are already going, so let's speed it up so we get there faster.
As for disproven, the debate on the pulled thread did not end in your favor. Homosexuality was taken off the list of mental disorders because of politics, not because homosexuals were found to be normal.
I wouldn't say that, but neither would I say that because something was held to be a certain way in the past, that that alone provides validity or proof that the past presumption was correct. Nor should we be afraid of questioning past presumptions. They have frequently been wrong.
I see the thread was pulled with JimRob telling you to "back off". I can only imagine all the love and good vibes I missed.