Actually have come to understand the fact that when ever dollar increases it may likely cause the depreciation of other currencies in underdeveloped countries. Particularly this might make this underdeveloped countries to be very poor. It can also make them not to engage in the global market of trading, because their currencies can not meet up to this increase in dollar. I think it’s really a global issue that needs to be addressed in order to help this underdeveloped countries.
Does the Dollar actually increase? I don't think it does. All fiats lose value on the long run and US dollar is inclusive. The dollar doesn't actually gain, what happens is that the currencies of the said underdeveloped countries depreciates when pegged with dollar. Dollar is the trading peer in the forex, so when a country's fiat is depreciated, it looks as if dollar is increasing, while in a real sense it is your own country's currency that is lossing value. This is why it is important for countries to protect their currency in order not to allow it fall freely. Just like the battle between the Nigerian government and binance.