Because settling usually means lowering unrealistic expectations (like accepting your partner migth lack the best attractive appareance,or be a bit stupid on a topic you like,etc) minor to moderate issues rather than deal breakers that can be dealt with with communication,cooperation and compromise

Not "date the worst possible human being imaginable"

Thats 2 very different outlooks what settling means for some people

Issue is

People that would fall in love with AI were already fucked to begin with

Taking away AI isnt gonna make them more likely tl date so putting the blame on AI is worthless