Portman still deserves some grief but he deserves far more credit then he's gotten in supporting and loving his son. Keep in mind the family above forced their son into conversion therapy.
It should also be noted (i'm not sure if they are still dating) the son is/was dating the cousin of U.S. Senator Jeff Flake,who hasn't changed his position on gay marriage either despite having a gay family member. That cousin was also forced into therapy.
It's why I won't ever fully condemn Portman. Already he is facing threats of being primaried even though his election will be three years away. Whatever his motives are,he stands behind his son,something these other sorry excuses for human beings won't do.