I think Bitcoin can't do much alone, but Bitcoin with alts (cryptocurrencies) can do a lot!
It's my opinion, and you can see that in some of my comments! Venezuela is just one of the "bad" examples of what this traditional economy is doing for centuries... It's too corrupted, and believe it or not powerful countries and their big banks are pretty much responsible for all that shit around that last for too long..
Crypto can be very transparent, easy to use... crypto is a tool that can be used for many good things! Of course, if it's used in the right way! People can have a vote that will count, and politicians together with banks will not be able to interfere and change everything in their favor! They will not be able to change the chain whenever they like it!
From the beginning of cryptocurrencies bitcoin started alone before adoption or introduction of other cryptocurrencies which is alternative coins, so it happened that without bitcoin the images of alternative coin will not come out as expected, so in summary bitcoin can exist without the support of alt coins but mean while alt coins can't exist without the support of bitcoin.
Of course, given that Bitcoin affects the entire cryptocurrency market, no altcoin can exist in isolation. But nevertheless, given the versatility of the cryptocurrency industry and the corresponding demand in the society, Bitcoin will not be able to satisfy all the demand on its own. Therefore, many altcoins complement bitcoin very effectively.
Yeah, it's obvious that the primary functions of alternative coins is complement to Bitcoin, but that shouldn't be use to equates Bitcoin to alternative coins or compared the influence of Bitcoin to altcoins, mean while father which is Bitcoin still remain as father, all alternative coins are supporters in cryptocurrency because during the introduction of Bitcoin the aims and objectives of the founder of Bitcoin which is satoshi Nakamoto is to bring the images of Bitcoin not altcoins, so therefore Bitcoin can equally exist without the support of all the numerous alternative coins.