Here is the essence of why the democratic principle that says you must be willing to lose does not work for conservatives: they believe they are superior to the rest of us and so the laws of nature/the universe/god/common sense/rational thought mean that losing is not possible.
Four month later addendum: Now that Trump has won legitimately, what will conservatives say? We may be bloodied, we liberals, but at least we won’t go down in history as total assholes.