Government agencies i’m familiar with dropped about half of their processing and tabulation staff in the 90s. An agency with 12,000 employees in 1989 has 5,000 today.
About another 50-75% will be gone in a decade or two. Most of the case management, IT, program staff and big legal shops are bloated with legacy paper processing and old business process. As that disappears, so will the jobs.
At the same time, at some point if all 'jobs' are no longer needed that would either mean humanity no longer exists or that scarcity no longer exists. In all other cases we'd still have some weird mix of what we have today and what we may have in the future.
Will two million people per year give up tasks they currently do to robots? Probably. That doesn't seem unrealistic at all. Will two million more people per year find themselves in the unemployment line? Probably not.
What's interesting is that (in the US), while manufacturing represented a larger share of the workforce in the past, the absolute number of people involved in manufacturing is relatively unchanged. The so-called decline of manufacturing is more a result of population growth than anything. Automation has allowed individuals to produce more, but it hasn't eliminated the people. The jobs that they do have no doubt changed considerably due to automation.