"Generally considered" by whom? The SPLC is but one of many organizations that maintains a "hate group" list. The FBI, for example, maintains its own database of hate groups, which is more narrowly (and sensibly) defined as groups that commit hate crimes. We need to be very careful about peppering the article lede with the "hate group" badge of shame that has only been applied by one major political interest group. If multiple, independent sources begin to apply the "hate group" label to the FRC, then I would be more inclined to include it in the lede (see, for example, VDARE and KKK).