No they wouldn't, because they're not absolute retards that conflates memes for reality. Context behind USSR meme is PRC warning US/TW against U2 overflights over mainland, all while trying to shoot them down... and eventually PRC shot down more U2s than USSR. Enough that U2 overflights stopped due to risk and had to rely on sats (CORONA). Of course USSR jokers didn't know this at the time. Or PRC "warning" preluded to border fighting with RU, India, against US+UN in Korea, threatened to invade HK if UK didn't handover, and covertly shot at French in IndoChina. All issues less important than TW. PRC the only actor who actively fought against every NPT nuclear state (i.e. hilariously/wrecklessly not deterred by nukes) , most while outguned and even not nuclear herself, which was prefaced by the actual "final" warning - the real one with specific verbiage (勿谓言之不预也 / "don't say I didn't warn you").
TLDR is PRC warns and does, it just couldn't do much before so generic warnings appeared toothless meme, but PRC was always doing / biting, especially after real "final" warning. Now it has much more teeth to do the biting, so TW even less likely to risk.
