Last I checked Kolbe wasn't in the senate and therefore could not filibuster in the first place.
So why bring him up then? Your specious argument is that a so-called RINO is no different than a Democrat. Thats false on any number of levels, starting with who holds majority status in Congress.
That Mary Landrieu is a cute little filibuster aint she? What happened to the loyal southern Republican base in Louisiana on Dec 7th 2002? Too many football games on that day? Deer season just opened?
My guess is that sugar price subsidies are more important than a conservative judiciary down in the heart of dixie.