To be transparent, I find it distressing that this conversation seems to come up every second week on a forum that is nominally for leftists, but I will nonetheless give you a summary.

1. Imagining counterfactually that all of the tacit assumptions about humanity you are making are true, the answer is still not an enlightened oligarchy, because that simply is not a real system of governance (oligarchy is, relying on arbitrary enlightenment on a personal level is not). You cannot construct any such system that doesn't just become a bureaucratic monstrosity that has very little regard for whatever sort of enlightenment you were initially selecting oligarchs for. Either democracy must be made to work or there is no real approach to progressive politics that isn't just the Dictatorship of You, Personally in place of the Dictatorship of the Proletariat.

2. The ruling ideology in all societies is the ideology of the ruling class. Ideology overwhelmingly functions effectively as a survival strategy, whether in terms of guiding practical action toward the world or developing coping mechanisms to rationalize action and inaction informed by the former. It should be extremely obvious why leftist spaces tend to be populated by people of various marginalized identities, because these are the people that the ruling ideology nakedly hurts in a way that is either intolerable or fully not survivable, so they seek out alternatives. This does not mean that they were born with superior souls to the social majority ["social majority" means people society socially privileges, even if they are in the numerical minority, like men or white South Africans or whoever], it means that the circumstances they were met with disincentivized them from turning a blind eye to the barbarism of the status quo, usually in the interest of protecting themselves or people in their lives. It is the job of every socialist to change that calculus by various means in the minds of more and more of the population until we have a popular base for making the proletariat the ruling class with its own ruling ideology.

3. The people are not above criticism, but they aren't as bad as you are portraying them to be and this is blatantly an absurd extrapolation even setting aside that we don't really know why the polling data looks as it does.

The website being this tolerant of misanthropy and bald-faced elitism is really not to anyone's benefit.