Because it's not only the incels and the rejects. The modern woman is way too arrogant for the little she's accomplished and she knows that in the future even the desirable men will stop chasing her once a sexbot can look and act like a real woman.
We're not threatened. The problem is that men don't get to just abandon women for a robot. Any man who avoids a real woman as a way to avoid stress and female emotional bullshit is a coward.