I don't think there is a barrier, certainly not intentionally.
thankfully, such barriers are rarely intentional. this is a very general comment, unintentional barriers are still important. it's easy to say - there's no barrier, if women/BME/disabled people wanted to stand for whatever, there's nothing stopping them, but if there is a discrepancy between represented and representative, then why? it's not always something you can do anything about, life and society is complex. but it should not be dismissed so readily. I'm not really talking about cycle campaigning here!
thankfully, such barriers are rarely intentional. this is a very general comment, unintentional barriers are still important. it's easy to say - there's no barrier, if women/BME/disabled people wanted to stand for whatever, there's nothing stopping them, but if there is a discrepancy between represented and representative, then why? it's not always something you can do anything about, life and society is complex. but it should not be dismissed so readily. I'm not really talking about cycle campaigning here!