This argument strikes me as fairly textbook "whataboutism."

TFA shows a clear and present case of a particular action taken by one political faction. Your argument, that the opposing faction is equivalent to a greater or lesser degree and would follow the same course of action, rests entirely on a hypothetical; it isn't supported by any concrete evidence or cited examples.

I'm certainly not asserting that any one faction/party holds a monopoly on moral high-ground, just highlighting that this kind of argument is frequently used as a tactic to deflect discussion away from ground truth considerations and shift the debate towards (artificially) neutral conditions.