When robots become as attractive as people, there will be no reason for progress to stop at that exact point, so they will quickly become much more attractive.

When robots become as attractive as people, there will be no reason for progress to stop at that exact point, so they will quickly become much more attractive. At that point, people who used to be "unattractive" will celebrate because they can finally get a good mate, while people who used to be "attractive" will develop serious self esteem issues. The attractive people will try to take collective action to keep their share of the market, like branding everyone who has sex with robots a "loser" or worse.