Oh, no, I'm afraid you misunderstand. I'm not pro-Hydaelyn at all; she had her reasons, and we can't ever dismiss that every single character we interact with is either a benefactor of her actions or at this point extremely, absurdly dead. At this point being anti-Hydaelyn is like being anti-Julius Caesar; you can write all the arguments you want, but it's not going to have any influence on anybody because Julius Caesar has not directly influenced society in a very long time.
But what I am is anti-'very recent crimes with still-extant victims'. And... yeah, it turns out the Ascians have committed a lot of them. I would hope you agree, over in-universe history they haven't just committed many more acts of mass destruction than Hydaelyn, but did so with considerably less remorse, and with survivors and effects that echo into the present day. Just in the four I brought up (because I specifically avoided the 'puppeted into doing the horrible thing' civilizations), there are surviving Nymians and Bozjans that are still in great turmoil because of them; depending on where you are in certain other questlines, there might be some Mhachi souls with something to say as well. Hell, your favorite civilization in the game probably has the most objections of all among those still with large populations, as not only did one of the Ascians turn their peaceful society into a militarized empire as a pawn, but then another Ascian basically turned their entire empire to dust for fun. They ain't good people, and I don't see enough people around here call them out for that!
This is technically entirely unrelated to the points the OP brings up, but it's true to the spirit of the initial question, because... well, why is it that when two sides have ostensibly committed the same acts of violence, why does this subforum only pull the knives out against one of them?
(Incidentally, my next video is related to the Ascians quite directly, but I suspect you won't be the biggest fan of what I have to say about them. Largely unrelated to this, though.)