The market value of cryptocurrencies is above $3 Trillion, which is more than the GDP of countries like India, UK, France.
The Bitcoin, emperor of the cryptocurrencies is enjoying the market cap of above $1 trillion.
The growing cryptocurrency market can certainly affect the global economy, it has become a matter of concern around the world, many countries are trying to ban it. However, due to the popularity of this new technology, and lack of a global control, no one has been able to do so.
The way, the popularity of cryptocurrency is increasing, all types of industries like Tesla, Microsoft, Facebook, Twitter, PayPal etc. are slowly accepting Cryptocurrency. It is also becoming difficult for the economies to keep Cryptocurrency away, banning a decentralized economy is almost impossible.