Yes, you could theoretically destroy Bitcoin.

Here are some scenarios - although unlikely, still theoretically possible:

    Massive DOS attack which completely takes out all miners. Without miners, you can’t validate transactions and create new blocks. Without new blocks no movement of Bitcoins. It’s dead. By the way, most probably the internet would be dead too.
    You break the cryptography behind the Proof of Work algorithm. It’s a mathematically sound approach, as it’s mathematically possible but just very, very, very hard. In simple terms: You can fake the complete chain if you manage to re-create a new chain which is longer than the real chain, which is completely sound to all the mathematical constraints for blocks and transactions, in the time it takes the other miners to create the next valid block. Potentially possible, for example, if you build a quantum computer in your garage and work out an algorithm which is able to do that.

A massive restriction on the global scale: Governments all over the world restrict the contact points with regular money and make it very, very hard to exchange Bitcoins. Which would make it useless for transactions outside the network?

pretty much no one

Internet shutdown?
Or perhaps if there is huge event happening in the future that I cannot even think of

What if block access to wallets or to the whole Internet, as in North Korea? who needs bitcoin if you can't use it. It is same as destruction I think

no one can and can destroy bitcoin, because bitcoin has a lot of requests or enthusiasts that make bitcoin in looking for everyone.

I do not think there is anything that can destroy the bitcoin or it can make it reach zero or even half the current value.

I think that actually the governments can destroy bitcoin if they work together everything would be gone because they control nearly everything in the world the governments.

Bitcoin would fall less than a week because its also unstable so it would fall really hard.

To me the fact of the economic version reminds we are the rulers for bitcoin price, if the demand is high there will be a raise in price and when demand decreases price falls.
So it's all in our hands, to be added it's all we need to understand such never happens reason why it is spreading in all sectors of payments.

We humans also can break the Bitcoins. Especially people with power like the Government. If the government is united to remove and make the bitcoins illegal it is possible. However, there should be some details as to why they will make it illegal. Just like its bad effect on the people, And other things that can be bad for the people who use it. But it's very impossible that bitcoins we use good things and have a great impact on their financial needs.

Nobody can destroy Bitcoin because this market is not controlled and completely free. I think only satoshi can kill Bitcoins but no one ever knew who Satoshi was and why Satoshi can make Bitcoins.