You are confusing the macro view with the personal. Try losing your job and being told "don't worry, your quality of life will improve over time!" Would you respond positively?
That being said I am not convinced a society who decided not to allow the internet would have been worse off.
Similarly for AI: yea there will be serious downsides not least of which you doing this will be surveillance and centralized state power and suffering for people ill positioned to navigate the transition. It would be more damaging to not let AI develop fully and to engage in the global competition that the US is strategically winning at this point (though China will probably figure out how to get around their compute starvation in the next ~5 or so years).