Maybe the OP didn't see 3 years ago where many coins in top 50 now didn't exist at the time,  So I think 5 years later the current top 50 coins won't necessarily remain in their position, Many coins out there are born every month new coins with sophisticated features and specifications. And I think Altcoin is not suitable as a long-term investment.

Some countries have legalized bitcoin, just look at Japan, China and some European countries that have legalized bitcoin transactions. what are you worried about?
Bitcoin has a bright future.

During world crises, you need to buy real estate, land, gold. Only in this way will you be able to save your money and earn in the future when the recovery of the world economy begins. By the way, gold has already begun to grow, and this is a signal that the crisis may happen very soon. I am more interested in how the global crisis will affect Bitcoin, because I plan to keep my money in it.