People were saying that nobody will use the internet for buying things, but 20 years later people are buying stuff online more and more. Internet, cars, and some other things had the same beginning, people couldn't accept there's something revolutionary is happening, and no matter how strongly you are holding to "old is better and more trusted" sooner or later you will be run over. I think that the same thing is happening with crypto, it will take time for adoption on some higher scales, but that is coming. Like you I am not sure that we can predict the bottom, the prices can drop more... and who knows when the market will get some boost, probably after the next halving. I am trying to not even think about that stuff anymore, simply holding and waiting will pay off eventually.
I agree that bitcoin will definitely grow, but we are above that "nobody will buy things online" stage already, it’s not at a point where it is doing that great or terrible, it doing alright for now. That is why I believe that we should be hopeful about the future of bitcoin too but we are not at that low level, we are above that already.
This means we will grow, and grow a lot in the next 20 years, but maybe not that much. I am sensing by 2030 we will be 500k by 2030, and by 2040 it could be 1-1.5 million dollars, because above that it would be quite difficult. Not that it’s impossible, but would require a high amount of inflation again and again.