I'm deeply confused what "ideological diversity" Chinese companies will offer. How much of the Western market is really pining for that autocratic, pro-censorship touch?
This probably wasn't because China is inherently less censorious, but rather the set of controversial ideas in Beijing are different than the set of controversial ideas in San Francisco.
Thus Chinese companies can be biased in ways that are relevant to the Chinese market, but less likely to be biased in ways that are relevant to the Western market.
If SV companies are biased in a way that is relevant to the Western market, this can be an opportunity for the Chinese companies to provide a more neutral service.