Not sure how this became a thread on Tulsi Gabbard, but I thought these two lines from Wikipedia were relevant to the discussion:
In October 2016, the Southern Poverty Law Center accused Ayaan, and the liberal Muslim reformer Maajid Nawaz, of being "anti-Muslim extremists", which caused protests in several prominent newspapers. The Lantos Foundation for Human Rights & Justice has written a public letter to the SPLC to retract the listings.
https://en.wikipedia.org/wiki/Ayaan_Hirsi_Ali
The SPLC has tended to be a little more political and less objective with their standards in the past year or two.
It's similar to the lack of objectivity of fact checking sites like Snopes and Politifact which have their own failings but are often used as the prime source to debunk items.