i) Human working population is shrinking, but robots are rising. Remember this person doesn't exist https://www.thispersondoesnotexist.com/ (but they look much like the real thing). See Boston Dynamics's Atlas, Spot etc. So, yeah, don't worry about demographics. Robots & robot assistants will multiply like rabbits (or rather like Windows 10 SW). This will overcompensate for the drop in working population.
2) Inequality is real. It's extremely dangerous and getting worse (tax cuts anyone?). But that doesn't mean it will reverse itself anytime soon. Most of humanity lived in bare subsistence levels vs the rich during majority of human history. If anything, equality is an aberration from the norm.
3) Access to information is awesome. This means governments & powers that be are hard at work stopping it :) Censure, regulation, control will be the norm going forward. Wild-west attitude towards information dissemination will reverse course.