What am I? I am a group.
You can't blame anyone for I being in me.
But I might not anyway.
It depends on how you see the sixth in the third.
But I wasn't invoking Godwin's Law!
You are not in me.
She is not, either.
But the second is, if you cut it.
But not the sixtieth of a minute!
Now, what am I, specifically?
If you see an ordinal number, read aloud which part(s) of the riddle you think is/are relevant.
For example, the fourth line: the sixth (beep) in the third (beep). And watch out for red herrings.