So many of you guys look at a D7 and see a penis. I see a predatory shark. Are you guys in the closet or do you just have some form of penis envy?
I see a penis because it looks like a penis. It has two outward protrusions (balls) at the base, a long neck, and bulbus tip, and a hole in the front of the bulb that stuff shoots out of. Deep Space Nine even has a scene where a bird of prey docks by having the tip mate against a recessed area in the station's docking ring.
You are speaking of TNG "Klingons" not the real TOS Klingon.
Exhibit A: Kor. Out thought Kirk and Spock. Was capable of adapting (quicker than Kirk) when the Organians displayed their godlike power. Cultured, intelligent and capable.
Kor did not outthink Kirk and Spock, he outnumbered and outgunned them. As for being "cultured" he was nothing more than an animal dressed like a man.
Exhibit B: Worf. Growls at Q and repeatedly tries violence against the Organian level (at least!) power of Q. Can't handle the responsibility of raising his own son. Uses lines like "If you were any other man I'd . . ." - don't bluster - do it or shut up. Taken captive how often and not on purpose? Simply dumb, brutish and incompetent with no understanding of the honour he claims.
TOS Klingons are more like the men of Gondor. TNG Klingons are Orcs.
Worf does express his dislike of Q vocally, but I don't think I ever remember him trying to physically attack him. As for Worf not taking responsibility for Alexander, part of the problem was that Kaylar spent his early childhood teaching him that Worf's values and traditions were garbage, but I really can't defend him. And even Martok seemed shocked at how bad their relationship was.
TOS presented the Klingons from the point of view of a people on the verge of all out a partial picture of the animals which made them look more duplicitous and dangerous than they actually were.