I’m an Indian staying in US, but probably not for long. Given how many of us are there, I don’t think Google India would have the capacity or care to hear our pleas. The only way to force them to build something useful is through government interference but I hardly feel that Indian government would do so.

You would need legal standing. A free account isn't your property.

Even for a free account, there is a contract in place between you and Twitter, which Twitter can't unilaterally terminate without reason, especially if the "code of conduct" collides with the right of free speech (https://www.ratgeberrecht.eu/internetrecht-aktuell/meinungsf...)

In Europe, GDPR has provisions about algorithmic decision-making, including a "Right to explanation":

https://turkishlawblog.com/read/article/221/algorithms-meet-...

I look forward to this getting used against Google and everyone else banning customers without explanation and/or recourse.

Property might be the wrong word here. I suspect that you do have a contract of sorts with any company with whom you have a free account. The consideration is sharing your data in exchange for the account.