to ‘the big one’ –
you should read joseph’s comments above. there, he argues that we have an obligation NOT to keep any mitzvah which has caused individual yiddin throughout history to go “off the derech”.
since there have been published reports of children (as well as avreichim) going “off the derech” to varying degrees because of the devastating poverty that the institutionalized kollel system has resulted in, according to Joseph’s shitta (and i assume you generally agree with him), we should immediately stop the kollel system (as well as stop encouraging/supporting it).