You are casting a wide net there, but I do agree with the sentiment. I do not think that trans-humanism will take off for good, and if it will, it will be over quickly.
Tech and surgeries will keep being expensive for a long time and most governments and insurance companies do not like to spend money. Rich idiots might get implanted, but sooner or later problems with tech will emerge and people will start backing off and trying to reel things back. Just see what happened with with coal, oil, pesticides, sticking radioactive shit everywhere, social media, antibiotic overuse etc.
When it comes to human-machine singularity, many people ignore that technology is fragile and that we know very little about human brain and body in general. Increased dependence on machine creates a load of new problems that I rarely if ever see addressed. Solar flare would be enough to severely cripple human-machine hybrids and straight up exterminate any consciousness uploaded into a machine.
Not really needed. Almost everyone has a smartphone and carries it constantly. Governments and companies can use smartphones to track your physical location, record video and audio, track what you do on the internet, and keep tabs on who you are interacting with. For chips to develop the same capabilities, there would need to be a huge breakthrough in energy storage technology. Even then, requiring chips might piss people off and cause issues, while everyone wants and likes their smartphones. Sweden is the only country I can see to succumb to this, as Swedes do not care about privacy, have money, and tend to be obedient drones. South Koreans, Singapereans, and Chinese are distant possibilities. In the U.S. multiple states already banned compulsory chipping or are working on doing that.