Wage gap is one of the feminist "issues" that is easier to debunk.

You just need to know how it's calculated, just search it on Google and you'll find that it's the comparison between the average hourly wage of men and women, WITHOUT ANY DISTINCTION BETWEEN PROFESSIONS.

There are also many studies that show how man choose higher paid jobs compared to woman.

Therefore it's not the "patriarchy" that oppresses women but it's them choosing less paid jobs.