You can oppose both polygamist or incestuous marriage if it’s in a context of religious and sexist oppression, which tend to be the case in most instances of those two types of marriages.
I wouldn’t have complains about polyamory incestuous marriage of free people. But sadly most of practical cases are not like that.
Your view is an intellectually honest one from a modernist perspective. I would go further though and say that marriage should have no secular existence at all.
You can oppose both polygamist or incestuous marriage if it’s in a context of religious and sexist oppression, which tend to be the case in most instances of those two types of marriages.
I wouldn’t have complains about polyamory incestuous marriage of free people. But sadly most of practical cases are not like that.
Your view is an intellectually honest one from a modernist perspective. I would go further though and say that marriage should have no secular existence at all.