Imagine if most countries unilaterally agree on banning centralized exchanges for good. Will that mean the end of crypto for good (even though it would still be possible to get some crypto through decentralized exchanges)? After all, most people will be afraid of using crypto if it's declared "illegal". The ban of centralized exchanges will surely topple crypto prices, signaling fear among investors and traders alike.
What are your thoughts?

I agree it will drop the price and have a big impact. but will not make crypto die. if there is no CEX, we still have DEX and there is no way the whole country will ban it. although later the fee will be more expensive, but it will be a way for crypto not to depend on a centralized system like today. but back to the discussion, this is just a possibility that will not become real. due to the fact that today there are more countries that are more open and willing to accept crypto than reject it.