Most of these bases are co-located with NATO or other allies for good reason, the US doesn't have to do everything itself wrt air defense, locating an airlift wing with a fighter wing.
But then it's a lower bar than people imagine, for China to buy similar friendship.
China is building up a lot of soft power with infrastructure projects all over the world - most of them are aimed at improving trade - ports, rail lines and the like. In the next decade or 2, they can reasonably make requests to place a few PLA/PLAA personnel and equipment on bases in strategic places, bases they may have been built using Chinese money.
If a country or coalition decided to attack all of those bases at once it would give the US the high ground to respond. Nazis tried a blitzkrieg and that didn't turn out well. As someone squarely against the bullshit of Trump, I would not be happy if he was in power at the time. But I do not doubt for a second that the US population in general would respond as readily as they did after 9/11 (but hopefully not as readily as in Iraq).
We just saw how the "dipshit in power" aspect works with Netanyahu in Gaza -- a disproportionate and tragic response. The only caveat is Trump is an extremely stupid dipshit, so I genuinely hope it doesn't turn out that way and everyone keeps their powder dry until Trump is out of office.
China's buildup of soft power is good for them, and I commend them for it. Fortunately, I believe soft power is a defensive power at its core, and I don't think it translates to offensive power. To confuse the two would be a mistake.
Thank you for the opportunity to get a lot off my chest this New Year's Eve. I hope it wasn't too offensive, because I believe you responded intelligently and in good faith, and thank you for that.
Many of the US military bases are communication centers or barracks on training bases. They serve important roles but are not "defensible" in many contexts.
Who am I even propagandizing for in this context?