If your point is the world is unfair, then yes obviously that is true, nobody disputes that.
But hey, having your capital cities bombed is expensive, transport is cheap, and so it's easier to bully countries in a different continent, eventually bomb and invade them, becuase you're pretty sure they won't be able reach you back home with conventional war means (planes, rockets, tanks,...).
And yes, it's relevant, some politicians in one of those "safe" countries decided to bomb some country in a different continent, and you, a normal football fan or a party goer get killed when those people come and fight back in "unconventional means" (eg 2015 in paris). Somehow no one treats those as "we're at war with them, we bombed them first, they're just fighting back".
TBH, considering the number of dead in palestine and the number of people in europe/us who literally lost everyone who ever mattered to them, the number of "terrorist" attacks seems relatively low.