This isn’t a one-hour-summary topic, and you’re not going to find “unbiased” reporting on it. Not trying to be a dick, it’s just the facts. Anyone telling you they have the “unbiased truth” about it is lying or delusional.
With that said, start with some Wikipedia browsing from the end of WW2, where the Allies started looking around for places around the world as Jewish refuges, and the struggles/ decisions made to plop Israel in the Middle East.
From there, there’s a bunch of back-and forth action between the new state of Israel and the people who were already living there (Palestinians), which has a lot of video summaries on YouTube. You’ll hear “Nakba” (Catastrophe in Arabic) used a lot, if that’s any indication of how it went.
All of that puts the Oct 7 attacks in more context, as well as the ongoing bombing in Gaza.
Good luck in your search. If people are being rude with you, it’s because the tone of your post is basically “I actively tried not to look at this conflict that’s been going on for 4 months that’s killed 30,000 people, and now care because of a single guy (Aaron Bushnell) immolating himself.” I’m VERY glad that his message got to you, as I agree that it’s an important issue, but it also feels frustrating that it took this long (respectfully).