How many robots has modern society actually built that are technically proficient and able to function autonomously? We haven't even achieved one.Only in Stellaris people reproduce faster than robots are built, realistically it would be faster to produce robots.
We aren't talking factory robots that are specialized to one task, we are talking about general purpose robots with AGI or advanced general intelligence which can be applied to multiple situations. You can take a Stellaris robot and put it in one job or another job without reformatting it's programming or reconfiguring it's hardware. You can't possibly do that with our robots, and without that a robot cannot function by itself, our robots need people to monitor and maintain them as they will not otherwise recover from faults.