(Disclaimer - I speak from a neutral standpoint, I'm not a politics person.)
It's not so black and white. There's also nationality at play. Chinese employees can be very nationalistic in times of war, especially, if they live in and around ASEAN. The moment something bad happens (to China), they will view it as China being the victim and do things others wouldn't normally do.
Case in point: Remember the Huawei ban? A lot of my ex-colleagues and friends (who are Chinese) dumped their iPhones at ridiculously low prices and exchanged it for a Huawei to show support for China (despite being outside of China). I saw this with my own eyes and I was blown away. I mean, convincing an Apple user to switch to Android is a billion dollar problem that Google is trying to solve for years now and just like a snap of a finger, nationality is reason enough for them to make the switch, irrespective of their personal consequences (switching clouds, etc).
Likewise, incentives alone isn't enough, there's not much you can do if the employees view this as a nationalistic issue.