In the 20th century alone, the Western Powers attacked the remains of the Caliphate (Ottoman Empire) splintering the Middle East into fragments,
Incorrect, the Ottomans attacked Russia, and joined into World War One and got punished along with the Western Empires that where on the wrong side, and if the Arabs hate the set up borders let them stop complaining and unite with each other (Which is what Baathism is about, and Baathism is not popular which is why the closest to success the Baathists had was when Hafez Al Assad temporarily submitted to Gamel abd Al Nasser.

failed to honor their promises for complete autonomy following WW1,
Arabs failed their promise to seriously hurt the Ottoman Empire, shall we hate Arabs now? Niether side fulfilled their agreement.

exploited the area's resources for decades,
In North Africa yes, but not in the Middle East.

fought wars (WW2 & Colonial spats) in Muslim Africa wherein the natives were casual targets for stray rounds,
The other option was allow the Nazis to win which I know many Arabs wanted, however that was simply not an option.

and topped it all off by creating a Jewish homeland from Arab territory as they finally left.
Arab land that had a Jewish Majority at the time, which is a funny way for it to be Arab Land, perhaps Istanbul is still Greek Land?

The West then supports this ersatz "Crusader Kingdom" allowing it to continue to steal what is theirs and to win wars in which it should otherwise have succumbed.
Israel won all of it's wars on it's own, and it has not stolen any land, land captured in defensive wars that the enemy wants to commit genocide is not theft.

Now the West calls for peace but continues to fund their pet kingdom as it squelches the Palestinian people.
I don't know where to begin in countering that. Perhaps the fact that Hamas rejects the right of Israel to exist? Or perhaps the fact that Israel has consistently been willing to negotiate while in a classic example in 2000/2001 the Palestinians have never missed an opportunity to miss an opportunity.