Bias is often based on limited but significant reasoning.
There are clear differences well demonstrated scientifically between the workings of male and female brains. Then there are the cultural templates that produce even greater differences in behavioral patterns and responses. Women in general, are more subjective, less detail oriented, less critical, and consequently less capable analytically. For example Laura our author. Experimental sample size? Significance of results unknowable without knowing sample size. Apparently SP in general is female oriented, because there are always insufficient details in their articles.