One of the things rarely touched on about Twitter / FB et al are that they are transmission platforms and then a discovery / recommendation layer on top.
The "algorithm" is this layer on top and it is assumed that this actively sorts people into their bubbles and people passively follow - there is much discussion about splitting the companies AT&T style to improve matters.
But countries where much of the discourse is on WhatsApp do not have WhatsApp to do this recommendation - it is done IRL (organically) - and people actively sort themselves.
The problem is not (just) the social media companies. It lies in us.
The solution if we are all mired in the gutter of social media, is to look up and reach for the stars.