Here is the very latest study on this important topic from the Center for Economic and Policy Research (CEPR). They found that boys and girls both do better in single-sex schools, when compared to boys and girls in mixed-sex schools.
We find robust evidence that pupils in single-sex schools outperform their counterparts in co-ed schools, by 5–10% of a standard deviation for boys and 4–7% for girls, with similar estimates across subjects (which include Korean, English, and maths). This is consistent with the findings reported in Park et al. (2013).
And this study was done in South Korea, where things are a lot more focused on academics than in North America!
In most schools, women comprise on average about 80% of the classroom instructors. This is not even to mention the administrators and the curriculum designers. It is not a friendly environment for boys. In fact, studies have shown that the typical curriculum is biased against boys. Teacher bias may also be a factor, since boys outperform their classroom grades on standardized tests (where there is no bias against them from the teachers).
Regarding the feminist curriculum, consider this report on a study from the UK Telegraph:
A lack of male role models at home and school is turning boys off reading at a young age as they increasingly reject books as “feminine”, it is claimed.
[…]Gavin Barwell, chairman of the All-Party Parliamentary Group on Literacy, said reading was not seen as a “masculine thing” by boys – leaving them lagging behind girls from the age of four onwards.
[…]According to Government figures, boys are less likely to read basic words or recite the alphabet by the age of five and the gap widens throughout compulsory education.
By the age of 16, fewer than 59 per cent of boys gained a good GCSE in English last year compared with 72.5 per cent of girls.
According to a brand new report from the American Enterprise Institute, this discrimination against boys is having a long-term negative effect on their participation in graduate school:
For the eighth year in a row, women earned a majority of doctoral degrees awarded at US universities in 2016. Of the 78,744 doctoral degrees awarded in 2016 (Table B.25), women earned 40,407 of those degrees and 52.1% of the total, compared to 37,145 degrees awarded to men who earned 47.9% of the total…
[…]Women represent 57.5% of all graduate students in the US, meaning that there are now 135 women enrolled in graduate school for every 100 men.
Here is one of the AEI charts:
You can read about a couple more studies here that also argue that the male-underformance problem is a lack of male teachers in the classroom. It’s important to understand this, because it shows why ignorant cries of “man up” are not going to get men to perform better in school and at work. And men only marry if they feel comfortable taking on the roles of husband and father – which costs money. Men have to be able to earn money in order to engage in marriage and family, and the schools we have right now are set up against them doing that. If you want your daughters to have husbands (instead of marrying government social programs), then you’d better pay attention to these studies and vote accordingly. If you can pull your boys put of mixed-sex schools, it’s a good idea to do that. Homeschooling or single-sex private schools work better for boys.