The reality is that BOTH sides have and are committing war crimes.
Irrelevant. You can't use war crimes to justify doing more war crimes.
And what I can claim is that Hamas obviously started this latest round with their 10-7 attack, murder, rape, etc. of Israeli civilians.
Again, if you're going to justify or downplay war crimes by saying the other side started it, then you have no basis to condemn Hamas.
Hamas has repeatedly committed war crimes for years, so this is not new.
And Israel doing war crimes isn't new either. It's just pretty obvious that you can't justify committing war crimes by pointing to other war crimes. If we do that, you can condemn neither Israel nor Hamas. If you believe what Hamas did was unjustified (which, obviously, it is) despite whatever Israel may have done to Gaza or the West Bank in the past, you cannot then turn around and say "because of what Hamas did, what Israel is doing can't be considered that bad" or downplay it implicitly along those rhetorical lines.
Seriously, this conversation reminds me of another thread in which a poster was attempting to justify
excessive police violence against protesters with logic along the lines of "well, they must have been doing SOMETHING to deserve it", which completely misses the point of the violence being EXCESSIVE. You can justify a RESPONSE, but you can't justify WAR CRIMES any more than you can justify EXCESSIVE police violence. That's literally just what that means.
We can agree that Hamas are evil, that their actions on 7/10 were vile, that justice demands the release of the hundreds of Israeli civilians they've kidnapped, that swift and reasonable military action against Hamas is justified in response to the well over 1,200 innocent civilians who were slaughtered by Hamas. We can agree to ALL OF THAT and STILL SAY "The actions Israel is currently taking in Gaza, the damage they have done, the tactics they have used, and TENS OF THOUSANDS OF CIVILIANS THEY HAVE KILLED is unjustified and can be considered war crimes".
This is called moral consistency. I fail to see why it is difficult for people to grasp it.