It's a lower bound estimate: Even if all "male losers" voted for the SdP, at least 80% of women would have to vote for the SdP, too, for SdP to get the results

It's a lower bound estimate: Even if all "male losers" voted for the SdP, at least 80% of women would have to vote for the SdP, too, for SdP to get the results it did. So I assume you'd refer to them as "female losers", then...