You aren’t wrong, trust is obviously very important.
What I am trying to describe is the emergence of an alternative system that people could choose to use based on its own merit, similar to how bitcoin has emerged. While many people still don’t trust an idea like bitcoin, already many millions of people do trust it, and the aggregate value of all bitcoin is currently something like half a trillion USD because of this, because of the network effect, because many people do give value to it. As the years go on, as bitcoin continues to fulfill its basic promise of being trustworthy, of functioning as intended, more people will continue to trust it and use it because, while flawed, it promises a degree of inherent trust and functionality that is superior to the incumbent alternative fiat currencies that continue to lose more and more relative value every year due to irresponsibility and corruption of the central banks.
In this sense, a decentralized digital identity network would simply be a more functionally decentralized social network. The topic here is trust, and here we are in the fediverse because centralized for-profit social media companies are not preferred by people here, because of trust and other reasons. As the years go on, the experience of for-profit social media companies will have to compete with the experience of fediverse social media, and if fediverse social media is better, it will eventually emerge as a preferred viable alternative, and maybe even the predominant form of social media. People can choose to use it or not, but because of the network effect, as more people do use it, it increases its inherent value, which causes more people to trust it and use it, which continues to increase the inherent value, etc., until some thresholds are reached.
This would be true also of a hypothetical decentralized identity network. People could choose to use it or not, based on its merits. Many people would choose not to use it because they don’t trust it. But, as it would continue to grow and evolve and improve, like bitcoin, or like the fediverse, a larger number of people would use it and trust it despite it being relatively niche, it would continue to demonstrate itself as a viable alternative. In such a scenario of emerging naturally by competing with the incumbent systems, it is not inconceivable that such a system could eventually surpass a threshold and become the predominant social network and identity system in the world, that also provides effective functionality of things like voting on issues.
These are some great questions that I don’t necessarily know the answer to.
I imagine a discussion platform kind of like Reddit / Lemmy, but where moderators are all democratically elected. This would ensure that the community always has the power to remove moderators that aren’t serving the interests of the community. In terms of how changes are made, I imagine an environment that combines the best features of Github and Wikipedia, in terms of how changes are made and decided upon and applied for everyone. That there would be standard processes in place for making suggestions and changes, but that the ultimate power rests in the hands of the community participants.