I have worked for a number of old generation US companies and some were a part of the military-industrial complex. The employee population in them was significantly biased to the right (white, male, middle aged), up to the point that it would be "Trump crowd" today. Yet, I have never heard anything like this. Uber as any other tech company is full of younger and more liberal people. So this particular allegation (open expressions of racism towards Asian Americans) just seems extremely unlikely.
Unless... Well, there are indeed some countries that are culturally very casually racist. Ex-USSR comes to mind. Yet, even ex-USSR crowd is not that stupid and by now there enough self awareness to not say things like this out loud.
This is fishy.