hmmm lets see.
A quick look at history shows that many different races at one time or another have laid claim to most of the world and its resources. Powerful Chinese dynasty's , Egyptian (AFRICA) rulers , Middle eastern kings/sultans etc.
As it stands right now , i would wager to say that Caucasian people "own" "everything" because they have been the most successful race at progression. Look at the current state of Africa , then look at Europe.
Asian races have been successful as well , but not on the scale of Caucasians. Japanese perhaps if they had been more colonial may have had larger success , however their relatively small population compared to Caucasians would make it difficult to match their advancement(in mass ownership of resources etc.).
By way of this progression , "white people" have become the most industrially and fiscally capable race at this current time. The fact that "white people" control some of the largest sums of money , and industry , puts them in a position to acquire pretty much anything. And yes , you can own resources , it may not be right , but that's the way it is.
I don't know if you hold Jews in the same category as "white people". If you keep them in a separate category , then you will realize quickly upon researching that "white people" do not own as much as you think. Real estate , the media , banking etc. is much controlled by the Jewish population.
perhaps this clears a bit up for you.
If you're looking for a rational intelligent answer , that is pretty much it. However if you wanna hear what i think you wanna hear , its because THEY ARE RACIST TYRANTS.