Bruh, the crusades was an extremely important event that occupied centuries of both European and Middle Eastern civilization's history and we're literally still dealing with the fallout on a global geopolitical scale...

You can argue the same for pretty much any major time period of history. Wars have been fought over the most trivial of causes. Women, minor insults, etc etc. You think this in particular is important because it's relevant to your cultural upbringing. Why would I as an Asian care about it as more than another historical piece of trivia?