Don’t be surprised if you are welcomed to an Orchard Supply Hardware Store by a robot ready to direct your shopping to the right aisle. Just show the replacement part needed to the machine’s screen and the OSHbot will escort you to the correct spot.

An addition, the robot celebrates diversity by speaking Spanish, so immigrants will find another disincentive to assimilate linguistically (which Americans expect of newbies).

Of course, robot greeters mean fewer jobs for humans. Store welcomer is a position sometimes taken by older workers, who are often seen as useless in today’s whippersnapper employment culture. Many Americans need to work well into their post-retirement years.

Finally, robot greeters are another example of how automation and smart machines are rapidly replacing human workers throughout the economy. The idea that America needs millions of immigrant workers to replace retiring boomers is entirely wrong-headed given the advances in technology.

Oxford University forecast last year that 45 percent of US jobs were vulnerable to robots or computerization in the next two decades. Another estimate is that one in three jobs will be done by smart machines by 2025 — that’s only 11 years off.

So Zero is now the correct number of immigrants for the roboticized future economy to keep producing goods and services. But Washington doesn’t seem to notice.