AviraDeArah,
“While we’re on the subject of the nishma study…”
I took a very brief look at the summary of the survey – and they note that 12% of the respondents self-identify as “open-orthodox”, and 22% as LWMO. A lot of the MO posters here exclude these groups from their own definition of Modern Orthodox. The survey summary noted a polarization within modern orthodoxy, with the right-leaning going more towards the right, and the left-leaning going more towards the left. This seems somewhat similar to the mechitza wars in the mid-20th century US, which ultimately resulted in shuls that were strictly Orthodox, and shuls that were Conservative. Though the flashpoint issues are different today, ein chadash tachas hashemmesh.