i m not seeing anyone can destroy bitcoin.you can see the growth and definately bitcoin user is also increasing day by day.so bitcoin  is for long term

Bitcoin prices will drop if the miner is greedy. As has been previously reported rumored if the greedy miners by raising their miner speed eventually not long ago bitcoin prices drop almost 15%. On the other hand I think the bitcoin maker aims to prosper the whole human through bitcoin.

Probably hackers who want to access and grab every bitcoin wallet of the people which could result in dissatisfaction and distrust of people to bitcoin which will eventually lead to the fall of bitcoin that might turn to zero value of every bitcoin and also those people who like to meddle with other peoples transaction which could turn to their immediate anger. And Scammers are also potential harm to bitcoin because they disturb and harm the other peoples transaction through frauds and trickery.

I don't think that bitcoin gets destroyed in a short or long by some authorities.  It’s popularity is still growing. The only way to destroy bitcoin is to disable Internet connection around the world.

Bitcoin is a crypto coin. Daytime Bitcoin became popular Its price is increasing and the price increases. It decreases prices like the stock market. It never stays.
Then and I think it's never likely to be zero. I hope its prices will continue to grow.

There are three ways to destroy bitcoin. Its my personal thinking only
1. A world war or nuclear war will  probably destroy bitcoin because a lot of people will be withdraw from crypto currency.
2. Internet Problem, If there are no internet bitcoin can not be used.
3. End of the electricity.
in my personal opinion that can destroy bitcoin. If that dose not happen then bitcoin will still exist and still used by the world community.

With the exception of a global war which will wipe mankind off the surface of the earth, I think the another way that bitcoin can destroy is when the entire world governments make up their mind to ban bitcoins, this will drop the value of bitcoins so low that people will lose interest in it.

For me I think no one can destroy bitcoin in easy way. Maybe bitcoin will die in some scenario like World War wherein there is a possible shutdown of internet in the world, lost of electricity and when all people are gone.

The collapse of humanity as we know it will be the only reason behind the collapse of Bitcoin and crypto-currency in general.
Blockchain technology is here to stay as long as technology exists.

We don't even know who created bitcoin, how can we destroy bitcoin??? If at the first place, we know the creator of bitcoin, maybe we can destroy it slowly and slowly. But now, not only we don't know the creator, people who holding bitcoin is actually quite big and can't be destroy with only 1 strike. So no one can, let it be