The current administration is only convincing the world that America is a threat. We live in an age where two oceans offer far less protection than they did when America rose to superpower status. The fact Russian intelligence operatives can so easily infiltrate American political discourse is just one example. Watch any congressional hearing about cyber and you might be forgiven for thinking we have already been invaded. Beating up on third world pariah states impresses no one but the current administration. The United States bombs Iran but blinks at Russia. The administration started a trade war with China then backed off, not one meaningful concession was achieved.
Unless America reverses course fast the decline will only continue. The world will move on. No country is inevitable.