Yes and no. It’s complicated!
People think we are in the midst of a battle in our culture today between the traditional definition of marriage and the gay activists who want to redefine it. This is NOT TRUE! The traditional definition of marriage was abandoned more than 40 years ago and the “gay marriage” push of today is simply a delayed outcome of that old lost battle.
100 years ago, marriage would have typically been defines as follows: “Marriage is the freely entered and permanent union of a man and woman the nature of whose self sacrificial love for one another is demonstrated by the fact that their relationship is fundamentally ordered towards the creation and nurturing of new life (children).”
In the 60’s, few people noticed when the cultural definition of marriage was changed as follows: “Marriage is the public celebration and recognition of the feeling of love that exists between a man and a woman.”
The latter definition is surficially the same, but has been virtually emptied of the rich depth of meaning. It took another generation of people growing up having never known a deeper definition for the challenge “why is this limited to just men and women?” to gain traction in people’s minds.
In short, it has more to do with contraception than abortion.