Can they be blamed?
Almost the entire book of Psalms reflects that exact sentiment. O Lord, lay waste my enemies before me. Smash their children's heads upon the rocks. A thousand will fall at your right hand, ten thousand at your side. etc, etc...
Yes, they can and should be blamed. Those passages in the Book of Psalms refer to taking vengeance upon the enemies of God's people back then. I've copied the psalm that so many have referenced in order to show the supposed tyrannical nature of the God of the Bible.
I invite any who are interested to read it through and see whether it encourages the kind of wholesale slaughter in which the WT seems to take such delight.
The others are Psalm 91, 138, and 143.
Psalm 137:1 -3 Alongside Babylon's rivers we sat on the banks; we cried and cried,
remembering the good old days in Zion.
Alongside the quaking aspens
we stacked our unplayed harps;
That's where our captors demanded songs,
sarcastic and mocking:
"Sing us a happy Zion song!"
4 -6 Oh, how could we ever sing God's song
in this wasteland?
If I ever forget you, Jerusalem,
let my fingers wither and fall off like leaves.
Let my tongue swell and turn black
if I fail to remember you,
If I fail, O dear Jerusalem,
to honor you as my greatest.
7 -9 God, remember those Edomites,
and remember the ruin of Jerusalem,
That day they yelled out,
"Wreck it, smash it to bits!"
And you, Babylonians—ravagers!
A reward to whoever gets back at you
for all you've done to us;
Yes, a reward to the one who grabs your babies
and smashes their heads on the rocks! MSG
Sylvia