Yes, and I think thought-blocking is a big part of how limiting beliefs and persistent negative emotions get installed and maintained. We do it on an individual basis to cope and survive with event that triggered the phobia (or limiting belief or negative emotion -- let's call them "gremlins"), and then we do it collectively as a sort of "agreement" to keep our gremlins in place.
I think that's fine, because our unconscious mind presents what there is to deal with, both for the individual avatar and for the collective, at the perfect time and in the perfect way. It would be sort of chaotic if all the gremlins were out at once! So, it doesn't bother me when someone (including myself) doesn't want to shift, although it used to drive me nuts!
And isn't it great that people are getting more and more fluid, fluent, and flexible? So much possibility! So much power!
p.s. Waxie, have you played with NLP techniques? I think you might really enjoy them. Dismantling phobias is easy.