In Monsey (where I grew up), everyone was accepted to Bais Yaakov of Monsey, regardless of who you were. Everyone (basically, not 100%) went to Bais Yaakov of Monsey from modern orthodox to chasidish (the extremely chasidish people went to Bais Rochel and the extrememly modern people went to Bat Torah, with a few heading to Bruriah). As the neighborhood school, they felt (and rightly so in my opinion) that they had to accept everyone.
As more girls started going to other schools, Bais Yaakov felt that they were no longer “the neighborhood school” and again (rightly so in my opinion) began rejecting girls. Girls had other options and were choosing to go elsewhere, so they were no longer obligated to the community. Case in point: my sisters (7 and 5 years older than me) 95% of their graduating elementary school from Yeshiva of Spring Valley went to Bais Yaakov. When I graduated from YSV, only 50% went. The rest scattered to Manhattan High School, Bat Torah, Bruriah, Maayanot and some other schools.
While I do not condone the schools in Lakewood at all, there are no specific neighborhood schools. I think there needs to be a solution, but schools should have the right to accept/reject people if they arent the only school around. Please note: I am not condoning turning away students from Yeshiva, but perhaps the boards of schools have to get together and discuss their “rejections” so that before they send out rejection letters they make sure every kid has some place to go.