Perhaps I was being confusing, so I'll try again: What quantifiable evidence (not anecdotal, not hearsay, "may be" or implication) is there that this ratio of liberals to conservatives is an indicator of negative outcomes for conservatives?
I think we may be speaking at cross purposes. I care about this because ideological diversity leads to a greater diversity of viewpoints, which makes it more likely that the hypothesis will be examined from a number of viewpoints, so any flaws are more likely to be discovered. This is a social psychology result that has held up to replication.
What do you mean by negative outcomes for conservatives? I would have thought that denying one tenure for one's political opinions would be a pretty negative outcome for any academic.
As to your last three paragraphs I suggest reading the journal article. If you want to continue the discussion after doing that feel free.