China has political tensions with over twenty different countries around the world. Some of them rely on the U.S. to protect them such as the Philippines which now has a problem with Chinese commercial fishermen in their territory. In theory, China bought the most expensive weapons on the entire planet in case all of their enemies form an alliance and gang up on them. It's the United Nations' job to deal with it but they'll end up relying on the U.S. Department of Defense and China knows it. That makes us a target.
Over twenty one percent of San Francisco's population is Chinese and so if the U.S. and China ever go to war than it will become necessary to research what happened to Japanese Americans during World War II. What would happen to the Bay Area region if twenty one percent of San Francisco residents were imprisoned in internment camps?
Don't worry; that could never happen in contemporary America and especially not in San Francisco.
The U.S. Department of Defense may sideline Chinese American personnel who are naturalized citizens because they have a conflict of interest: If they were born and raised in enemy territory than they probably still have family and friends there.
Will China attack America? No one knows. They have the ability to do so. China has a space program (satellites in outer space) which means that they're capable of launching intercontinental ballistic missiles ("ICB") at the U.S.. They could detonate a nuclear missile above the earth's atmosphere which would create an electromagnetic pulse (EMP) that would destroy all of the electronic devices in America. Our water distribution systems run on electricity. The trucks that transport our food and gasoline have electrical components in their engines.
We would rebuild our electronics and in the meantime we'd have to rely on ancient technology from the 1800's such as wood burning steam trains, horse drawn wagons, sail boats, and bicycles.
The military is aware of that and many of their electrical devices are protected from EMP attacks. Imagine their retaliation. What would the U.S. Department of Defense do to China if they detonated a nuclear bomb above us?
Passively sit back and wait for China's population to implode because they murder their baby girls? Passively sit back and wait for them to get cancer because of the toxic industrial waste that they've dumped into their rivers? Wait for them to have an accident such as Chernobyl or Fukushima? Obviously not. If there was only one American survivor left in our chain of command than China would go straight to hell within a matter of minutes, and they know it.
Is there any question why Americans feel threatened? China got caught having an enormous secret underground weapons facility that they never reported to the United Nations, and now they're shouting to the entire world that they bought a used aircraft carrier that used to belong to the Soviet Union.
Rumors abound. One such rumor is that China bought extremely expensive custom weapons that the U.S. can't afford. Our military is familiar with the technology and they're wondering why China needs such a thing. It points back to China's problems with over twenty different nations and that some of them rely on the U.S. for protection, and by being the global police we've turned ourselves into a target.
We're a formidable target. We have the largest aircraft carriers and fleets of jet fighters, and we have the most experience managing them by far.
There's a rumor circulating the planet that the United States is broke and headed for collapse in thirty years because of our unfunded liabilities (we can't afford to pay for our expenses), and that China is a vulture waiting for it to happen so that they can bully everyone in the Pacific Ocean and possibly try to seize U.S. soil. In my opinion it's just a rumor because China bought $1.32 trillion dollars in U.S. Bonds.
With that said, there may be Chinese investors who are vultures waiting for the U.S. to collapse so that they can go shopping on Wall Street and get really cheap stock prices on American Fortune 500 companies. Al Qaeda did the same thing to United Airlines and American Airlines when they attacked the World Trade Center.
Unknown investors made over 2.5 million dollars in profit by using a financial derivative that increased in value when the stock went down for United Airlines and American Airlines, the companies that owned the airplanes that terrorists hijacked and crashed into the World Trade Center Towers One and Two. The investors purchased "short sales" which is when one borrows stock from a broker and sells it with the hope of buying it back later at a reduced price. In the month before the WTC attack, short sales skyrocketed by 40% for UAL Corporation which held a 100% controlling interest in United Airlines. During the same period short sales jumped by 20% for American Airlines.