Stealth was fiction too. ICBMs were science fiction. Cyber defense and offense were fiction to you. So if I don’t run Window’s I’m good huh? Nice. I hate to tell you but every system is exploitable and every system has been exploited. Being in economic competention with China doesn’t necessarily mean they don’t view us as an enemy. We certainly are as we try to push more American goods into their market and are constantly rebuffed. They constantly push, with military force, against allies like Taiwan, Japan, and the Philippines. Even getting into an artillery war with India over a speck of dirt in Tibet not too long ago.