A lot of common expressions don't hold up to scrutiny when examined in their most "literal" explanation.
This particular one has been used to associate with social civil rights. The implication is that 50 years from now gay and trans acceptance will be such a non-issue, that members of future generations will ask us why it took so long for us to pass such obvious legislation protecting human rights. Exactly the same way that we today look back at segregation and the civil rights movement and shake our heads.
Whatever people's personal or religious beliefs are on gay marriage, it is GOING to be 100% legal in the entire western world whether they like it or not. Desegregation wasn't very popular at the time it was put in either.
This particular one has been used to associate with social civil rights. The implication is that 50 years from now gay and trans acceptance will be such a non-issue, that members of future generations will ask us why it took so long for us to pass such obvious legislation protecting human rights. Exactly the same way that we today look back at segregation and the civil rights movement and shake our heads.
Whatever people's personal or religious beliefs are on gay marriage, it is GOING to be 100% legal in the entire western world whether they like it or not. Desegregation wasn't very popular at the time it was put in either.