Bitcoin will for sure have a future, but still lots of hurdles have to be taken.
It can only be used when the volatility will decrease.
Persons don't want to become the next pizza guy after purchasing something with Bitcoin, while the seller of the good or services doesn't want to take the risk, that the BTC he received could have a decrease in value of 10 to 15% the next day.
In the things that could destroy bitcoin, I do think that you forgot the scams related with ICOs and cryptocurrency, the Binance hack (we all know that Binance wasn't hacked) and so on. We, involved in crypto, can give this a place, but the people who aren't can't. It will set back the perception.
Just like the perception of self driving car got a huge dip after the fatal accident earlier this week.
Yep, BTC will survive and will be globally adopted but maybe not with the speed we expect and I doubt it if it ever will be used as a currency today!