> One might gently recommend reading the "Political and social views" section
This obviously changes absolutely nothing about his status as greatest logician since Aristotle.
By the way, he is also the person who could be, more appropriately than anyone else, called "father of analytic philosophy", since he strongly influenced Russel, Wittgenstein and Carnap, all themselves major figures of early analytic philosophy, and wrote influential analytic philosophy classics like "On Sense and Reference" more than 130 years ago.
Michael Dummett (who was, according to an obituary, "among the most significant British philosophers of the last century and a leading campaigner for racial tolerance and equality") marked Frege's 1884 book "The Foundations of Arithmetic" as the beginning of analytic philosophy.
"obviously" -- keep telling on yourself.
Yes, I'm not committing the logical fallacy of confusing truth values and moral values.
No, just a much more mundane rhetorical bait-and-switch. Ranking the "greatest logician" is purely-subjective, not a truth-value. Barging in like the kool-aid-man to bellyache that Harper isn't applauding Frege in an article that has nothing to do with him, while dismissing with a wave of your hand the obvious reason that nobody does that. To put it in your debate-club lingo: that's begging the question.