[0]: https://en.wikipedia.org/wiki/Ayaan_Hirsi_Ali
[1]: https://en.wikipedia.org/wiki/Maajid_Nawaz
[2]: https://www.splcenter.org/20161025/journalists-manual-field-...
As for her changing her stance, the Wikipedia article references a Max Rodenbeck article from the New York Review of Books in 2015 that she has "mellowed".
If this is something you're interested in, I encourage you to look into this deeper yourself, if only because I don't think I can do full justice to the issue. Stuff like this is complicated, and one needs to weigh one's own values and their rankings as a whole, rather than as a single issue, which often gets missed in a lot of discourse today.
And to reiterate, I agree with you that the SPLC has historically been a force for good for the reasons you mention.
Furthermore, the point of the OP is that the SPLC itself has gone overboard in governing who and what is hate speech or bigotry. Some of their work is obviously legitimate, but not everyone who has a problem with Islam is a bigot anymore than those who have a problem with Christianity or Naturalism or Republicans.
We judge -- we must judge. Fine. But I would much prefer that we say "that's wrong/dumb/whatever" and never "you do not get to speak [that or at all]".
Which opinions does someone have a “right” to have? Is there a list? SPLC has managed to do a lot of damage to its credibility by adding otherwise nominal conservatives to its lists of bad actors.
So, yes, people are indeed blindly calling folks “Bigot” without thinking through what doing so implies about their own tolerance toward others.
I don’t really have a dog in that fight one way or the other. What I’m trying to point out to you is that these things are most definitely not “settled” issues if you think about them for more than the fleeting moment it requires to let everyone know how progressive you are. They likely never will be settled - unless you get your way and the “wrong” opinions are banned.
http://www.weeklystandard.com/splc-targets-feminist-scholar-...