See also #IdleNoMore in Canada, from 2012.

Re: changing policy versus changing norms, the debate is a bit “If all you have is a hammer….” The Civil Rights Act of 1866 didn’t end racism in the US. No one should discount the work of people trying to change norms just because they lack a policy proposal. As you note, in most cases, the problem exists not for lack of policies. See Wikipedia’s list of anti-discrimination acts in the US: https://en.wikipedia.org/wiki/List_of_anti-discrimination_acts#.C2.A0United_States