Why is the American Family Association designated as an anti-gay hate group by the SPLC?

Here’s a good example of why. Note that they are using Matt Barber of the Liberty Counsel as a source:

Usually, groups like NOM who try to pretend that they’re not motivated by bigotry will grant that they think gays should be able to visit their partners in the hospital, but here, you have the American Family Association and Matt Barber, who would rather hospitals keep loving spouses apart during times of illness and/or tragedy.

Juvenile hatred? Yes.

[h/t Joe]