I understand your point. You seems to be very passionate about bitcoin.
I personally think bitcoin has a higher tendencity to stay on the market and won't go off. Bitcoin is the grandpapa of all cryptos and hence have the ability to stay on the market and pave way for other cryptos, hence bitcoin is no match to other cryptos.
Right now bitcoin has dominated and has been dominating since its inception. But there's a possibility that a new coin will be born in the future to take the crown from bitcoin.
Every ground breaking projects attracts investors and promoters. Bitcoin as a ground breaking project will certainly be acceptable everywhere in the world. Since other countries wants to invent their own cryptos, there will certainly be fighters of bitcoin, nevertheless, bitcoin still remains the peak.
If you are on the top, there's always someone who wanted to pull you down and take that spot. ETH and Ripple (XRP) and Bitcoin Cash (BCH) have attempted but failed.
Bitcoin has already started proving people wrong. People never believed it will last for even a year when it came in 2009, but we are in 2018 and bitcoin is still popping higher. As the internet literacy rate in countries increases, and people gets to know more about internet trading and marketting, bitcoin will raise the economic status since there will be a lot of bitcoin millionaires in the system.
However, I don't think that bitcoin is the solution specially in 3rd world countries to alleviate their financial status. Becoming millionaires in bitcoin will take you time, but its not a get rich scheme. You need to be emotionally strong at this ecosystem. Patience, making the right decision is the key to success here. You don't expect to get rich without the risk and doing nothing.