Jews are powerful precisely because they are evil, and thus morally aligned with the being who controls this planet, namely satan, whom is in direct communion with them.
You could say jews rule the world. Or you could say whites rule the world. Which is more accurate? Jews are a specific type of Indo-European, and they are largely over-represented. But they're also a specific group of satanist. And satanists, by and large, rule planet Earth. Therefore, if it's more accurate to say jews rule the world than it is to say whites rule the world, it's also more accurate to say satanists rule the world.
Perhaps your question should be, "Why do Satanists ALWAYS win?" Why are serial killers released from prison and why are good, upstanding, beautiful, strong, intelligent white people shit upon by nearly every institution in their own countries? Why are the spiteful mutants of the world pushing for the abolition of prison and police, but defending violent criminals?
Because we, as a species, the species under whose dominion this planetary body falls, are EVIL. Capital E, V, I and L. EVIL!
Our flesh is grotesque and addicted to impure things. Our natural pleasure drives are derived from sadomasochistic paradigms. We can't feel happiness without despair and destruction.
So why wouldn't satanic kikes rule? They figured out long before Sabbatai Zevi that doing abhorrent things gives them power from a higher source. So too did the ones who built our country on the back of incoherent and unstable imperatives realize that they could achieve more personal power through subversion and devil-worship. Double jeopardy and other laws and statutes designed to protect criminals were designed to be destructive.
Not only was Obama the antichrist, but so is Trump. Every successive president is the antichrist. Our country is the great satan, as muzzies say.