In today's world, crypto has infected the world financial system by providing or creating a more secured payment channel using p2p.
No it has not.
When you say "crypto" it is too broad. It includes thousands of altcoins and tokens, 99% of which have no use cases apart from speculation (pump and dumps on exchanges). In other words they don't provide you with anything least of all a "secure payment channel".
This is what bitcoin has done and it did it by being decentralized and focus on being censorship resistant. Being P2P ensured that.
This virus is to the demerit of different financial institutions and government entities who benefit by placing regulations on all transactions made in the financial world by creating loopholes in their structured monetary system, thereby causing financial flight.
The problems that the centralized financial system faces is not because of the regulations but all because of corruption.
So far we have seen many world leaders placing bans on cryptocurrency using China as an instance.
China has never banned bitcoin.
So far China has shut down massive money laundering operations called exchanges and shut down what they thought was causing their energy crisis called big mining farms (it didn't help one bit).
Although whatever their fears may be, I think this is a positive virus.
Why even call it a "virus"?!
Recently, Hungary, one of the EU countries pleaded to place a ban on crypto.
Again there was no "ban" or "plan to ban". This has been mostly regulations and restrictions that wasn't even placed on crypto or bitcoin, it was placed on centralized services like exchanges or payment processors that shouldn't even exist in the decentralized world.