There is considerable fear-mongering in your Hot Takes.
1. True. Since it's now required, most, but not all, agents will abide by the rules.
2. False. Prices always adjust but not because of commissions. Commissions don't dictate the intrinsic value of real property.
3. Partially True. I suspect many full-time agents will simply become part-time agents and they'll find steady income elsewhere.
4. False. Sellers are not greedy because they want to maximize their net. I suggest Buyers (well, more like buyer's agents) are greedy because they want the seller to pay for a service the seller doesn't receive. Paying someone to negotiate against me is indicative of a broken system. If I want a broker, agent, etc. to represent me, I shouldn't ask someone else to pay for him/her. This is indicative of a broken system. I sell about 40% of my investments directly to the end buyer who does not have representation. Twice this year, the buyers called to tell me they want my house and agree to my terms but their "representative" won't listen to them and they feel they'll lose the house.
5. Partially True. Some sellers will get "screwed", many will not. Again, fear-mongering is the word of the day. I have yet to have a single complaint, in 24 years, from a buyer who worked directly with me with purchasing one of my homes. In fact, many call me back years later to list their home because they know I was fair and detailed. As stated above, not all buyer agents truly represent their buyers because they don't understand the buyer makes decisions, not the buyer's agent.