But crypto is just one of the many applications of the blockchain technology.

Yes, this is something a lot of people fail to understand. That is why some people think that apart from crypto blockchain cannot be used for any other thing.

many sectors are building their own blockchain and in years to come am sure the world will adopt the blockchain system

Yes we are seeing some counties begin to look at new ways in which They can integrate it with their centralised system. Some other countries have accepted the financial part of it and sooner or later we will see other counties hop on the train too.

Unemployment

This is something else that bothers me a lot. So may people will have to sacrifice their jobs if we want to see the blockchain become a reality.