Um, well, er, NO, gays have NOT been fighting for marriage for 50 years. 20 at best, and even then nobody, not even liberals like Hillary and Obama took it "seriously" until... 3 years ago. Hasn't anyone heard of arranged marriages, or marriages of convenience?
That's been going on for millennia.
But it has ALWAYS been man/woman.
If you asked Freddie Mercury if he wanted to get married, he would have laughed at the very notion.
Getting "married" was about the LAST thing he wanted.
It would have interfered with having sex with multiple anonymous males every single night.
But their very logic, that Constitution must respect and dignity any loving relationship, means there is no basis to deny polygamists and polyamorists what they want.