A single person with a blockchain wallet could technically start and operate their own bank, send money across borders to make loans and collect payments. They could achieve all of this functionality on their own without hiring a single employee. That could be one of the key points of blockchain technology--it eliminates workers and middle men.
I agree with you that blockchain can reduce jobs. But unfortunately, you are in the era of the evolution of information technology. Strong people must adapt, and the weak will remain the same mass of people who will be reduced.