Oh Jesus. As this tech gets good enough, eventually people will start falling in love with the damned things. It's inevitable. And eventually they'll want to make it socially acceptable to take their fuck-robots out in public. They'll want to marry the things. They'll be trying to piggyback off the gay and trans rights movements. Everyone will be like, "dude, that is clearly a robot. I can show you the code. There's nobody looking back from behind those plastic eyes." And they'll be like, "no! You just don't understand our love, I know she's real!"
We are so incredibly fucked.
Sure it would be difficult. It wouldn't be easy. Like anything, you don't just start with humans. You start with mice and work your way up from there. But you're right, it would I suppose not be a near term thing. But still, for people like Musk, who always insist how they are so concerned with the future 'survival of humanity?' If you're that worried about underpopulation, to the point you're willingly throwing away civil rights, wouldn't such a thing be worth funding, even if it takes a century to figure it out?