1. further entrenchment of existing inequalities ... we were doing this LONG before AI came along. This isnt a new problem, it's not like AI is the reason some groups are under-represented in tech. (and it's not like tech itself is to blame alone).
2. manipulation and misinformation... Go back in history and the progressive movement was all in on eugenics in the early 1900's. Alex jones is a thing today. This was already a problem.
3. loss of control of autonomous AI systems ... there's the doomer I know and love! If your an AIG doomer go read I, Pencil. Look at the guy who tried to make a toaster from nothing (and bread too). Read up about how brittle the entire power system is. Things are falling apart because we're too cheap to put the people and resources into maintaining them. Unless AGI wants to die in the process it's going to be a long time before a world exists where it doesn't need people.
Seriously, climate change, nuclear threats, a bad screw up in bio research... way more likely to kill us all than for us to get to AGI.
AI today is about as useful as a bitcoin in a black out. It's interesting but it doesn't DO anything other than waste power and resources.
EDIT: it was so worrying that all the main safety folks quit openAI and no longer want to save us /s