Gaza is the world's largest open air prison.
Um, no. I know this gets repeated a lot but it is wrong. The West Bank is an open air prison. Gaza was an autonomous zone with neighbors (including Egypt) who don't like them. Gaza wasn't an open air prison, but it will be now. Also, your claims about losing land in 1948 don't really wash. 99% of both populations were not in the Levant in 1900. That area was worthless after the Silk Road stopped being a major trade root in the early modern period. So most people left and Ottoman administrative incompetence did the rest. After WWI, small numbers of both Jews and Arabs moved into the region. After WWII, many Jews from Europe went there but all the Jews from the Middle East and North Africa were forced at gunpoint to move to the Levant. When they got there, the British (not the Jews) were moving the two populations into different areas to prevent conflict. There were atrocities (by both groups) but only one of those groups was moved there by force and it wasn't the Palestinians (who didn't use that label yet). Truth is, this style of conflict is endemic to this area since 1100 or so when terrorism became a common tactic. And it is largely only practiced by the Muslims. Also, I am being nice here, there is a lot of history I am leaving out and none of it makes the Palestinians look good.
Being in favor of mass civilian deaths is hardly strong morality
So you are anti-hamas then right? right? That's an absurd way to characterize this conflict. I could say that trading with China is being pro-genocide of the Uyghars but Apple still makes the iPhone in China. Also, the number of total deaths in Gaza is less than a week of the Ukrainian war. And in that war, the ratio of civilian to military deaths is even worse than in Gaza. Turns out, throwing around non-guided artillary shells is bad for people, who knew. If the US doesn't supply weapons to Israel, they switch from our guided rounds to dumb shells. Is that going to help the number of civilian deaths? Probably not. The saddest part of this entire situation is that people are destroying themselves even though if they got what they wanted, it wouldn't effect anything in Gaza except do the one thing that they complain about (causing more civilian deaths). After all, the US doesn't control Israel. Hell, the Israelis have been in the penalty box since Stuxnet.
pointing out that Israel is engaging in highly questionable practices that are resulting in massive numbers of civilian deaths
It is also not really supported by the facts. When you compare numbers (civilian to combatant deaths) between wars, the IDF is pretty good despite the fact they are fighting someone who will break every rule of war. Its a lot easier when the other side is following at least some rules of war. Their numbers are even better than ours in Iraq and the Iraqi weren't using a lot of the more brutal tactics that hamas uses. War is hell, people will die, doesn't mean there aren't things worth fighting for. And the lives of your family is certainly one of them. That's where the Palestinians can never win. You can't beat a superior opponent when you put them "on death's ground" (Sun Tsu). That hasn't changed in 2000 years and that's not going to change anytime soon. If your aim is total annihilation, you can't win and the problem for hamas is that's their stated goal and nothing seems to ever change that. Until that changes, they are just going to get a lot more of their own (and others) killed.
I note the invasion of Iraq enjoyed wide bi-partisan support
That's revisionist history. The invasion of Afghanistan had wide bi-partisan support. Before the Iraq there were huge protests (even in the US) against it even if Congress rolled over immediately. Those that rolled on that vote were later voted out in large numbers. It wasn't bi-partisan in the population even if the politicians rolled over. Your narrative about Bush 43 is something I have never heard and I was an adult during that entire period of history.
Israel has ethnically cleansed so many Palestinians that now there are more refugee Palestinians than Jews in the West.
This is objectively false by any measure. You are confusing Palestinians for Syrians who aren't the same group of people and are in the west for entirely different reasons. My son lives in Germany and he told me about a Palestinian friend. I had him send me a picture. The "friend" was clearly Syrian and was wearing the tribal patterns of his tribe from central Syria. Also, there are almost no Palestinians in Germany. The strong antisemitism laws in Germany mean any Palestinians who make it to the west live elsewhere. Also, your take on a "better deal" is pretty absurd and ahistorical.
"All the people are so happy now, their heads are caving in. I'm glad they are a snowman with protective rubber skin" -- They Might Be Giants