I never got this argument and I now where this point devolves into - I see this take a lot from Chinese on Weibo, locally here in Asia, and by Chinese people in the States. I’m Taiwanese-American for background.
If China were to interfere domestically into U.S affairs covertly and somehow convince Texas into secession - I would find it difficult to believe the United States would go to war with Texas. If it was democratically voted, most Americans would be fine with it. It would be extremely unpopular to go to war over this. Just reverse it, if California were to leave the Union, most conservative states would say good riddance. Now bomb SF? Not even the most deranged Americans would want that.
If China were to interfere domestically into U.S affairs covertly and somehow convince Texas into secession - I would find it difficult to believe the United States would go to war with Texas. If it was democratically voted, most Americans would be fine with it. It would be extremely unpopular to go to war over this. Just reverse it, if California were to leave the Union, most conservative states would say good riddance. Now bomb SF? Not even the most deranged Americans would want that.