I think why attraction in general (not just sexual attraction) frightens the PMC libs is because it’s not easily consciously controllable. You can’t manage it readily and you can’t build a contract around it. You can’t bureaucratize it and it’s not amenable to Taylorization. It just is. Try as you might, it’ll never be under the full power of HR.
This is a very terrifying prospect to those who find liberation in some Human Resources zombie drone telling them what to do and who they can befriend and date.