In reality, there has been an active economic decoupling going on since 2012-13. The primary manufacturers for intermediate parts (the main portion of the supply chain that Chinese industry is competitive in) are Japanese, South Korean, and Taiwanese conglomerates like SK Hynix, Samsung, LG, Toshiba, Panasonic, NEC, Mitsubishi, Foxconn, etc. All these companies began leaving for ASEAN in the 2012-17 period when political crises between PRC-Japan (Senkakou/Diayou Islands), Taiwan, and South Korea (THAAD) lead all 3 countries to move FDI to Vietnam or reopen factories in Thailand and Malaysia that moved to PRC in the 2000s. And this isn't just in Hardware. Even in Software, American VC investment in PRC peaked in 2015 before crashing after that.

Basically, what I'm trying to say is those of us who have worked in or work adjacent to the policy space know that we are in a period of elevated tensions between the PRC and the US, but it's not at the "we're going to start a shooting war" level yet. The kind of hyper-hawkish and paranoid rhetoric among "normies" is ridiculous and I say that as a China Hawk. But then again, if you have intimate knowledge of how those specific agencies and governments operate, it starts looking less scary.