Maybe it's from a watching too much Deadwood but "cocksucker" has taken up permanent residence in my brain and I can't dislodge.

The way I justify it to myself is that, no, there is NOTHING wrong with sucking cock, but it shouldn't be your primary form of interacting with others, especially to people superior to you.

So when I say "my organization is full of cocksuckers", I mean to say that everyone owes their position to ingratiating themselves to the person above them, aka polishing knobs, and very little else--applying equally to women or men.

But, yeah, if someone were actually a gay man, I'd definitely not say that about them specifically.

Feel free to offer an alternative that offers the same deprecatory contempt. I'd offer "shit eaters", but it doesn't quite have the same ingratiatory overtones.