Schools ceratinly are feminised environments whose stucture and style of delivery preferences girls and dissaffects boys at a yuong age. Less so as they get older, but for many boys the damage in education is then done.
Firstly boys generally (and all this is generalisatiobs with excpetions but a large amount of evidence to support from truth) mature cognitively later than girls and so are not ready for formal education which they are pushed into too early, wheras many girls are more ready.
Boys fine motor skills are often less deveoped than girls at a young age so early writing is a disheartebing experience.
physical education which boys have a prefernce and need for has been increasingl squeezed out.
Exploratory play and learning which is often boys preferred learning route has also been squeezed out (but is hopefully increasingly returning soon).
Discovery learning such as topic work has been ababdoned in favour of more formalised formulaic learning. boys oftne have a preference for discovery learning as they are motiovated by thier own intersts and not in pleasing adults. girls are oftne motivated by pleasing adults and enjoy tasks with 'correct' outcomes which they can achieve and often get stressed by non specific tasks which may motivate boys.
Schools and learning are almost entirely language based whivh is often girls preferred learning method. Opportunities for and credit given to problem solving and spatial abilities which are often boys strengths is very very limited.
Sedentary fine motor, predominantly writing, tasks which dominate much of the current curriculum and school day are very difficult for boys to acheive well in and do not motivate them. this leads to disaffetecd boys who have no belief in themsleves as learners.
95% are primary teachers (or so) are female, with thier own language based perference style and little understanding in how boys learn and why they are underacheieving.
Add to this an number of them may have the awful views of little boys and demonise them and their behaviour which is then self fulfilling and you have lots of sad, 'naughty' disaffeted underacheiving boys.
I have met and worked with many teachers with an anti boy bais and a prefernce for the good easy girls. Boys are often demonised as OM has so nicely demonstrated.
There is lots and lots of reasearch on this at the moment, increasing recognition of it in schools and money going in to set up schemes for boys and educate teachers.
Boys often make up for this at seconadry, where they have more choice over subjects and the system begins to demotiavte girls particuarly in sciences.
can't be arsed to proof read, evidently.