Complex sentence: The belief that cults brainwashed their members became a unifying theme among cult critics and in the more extreme corners of the anti-cult movement techniques like the sometimes forceful "deprogramming" of cult members became standard practice.
Split into simpler sentences: The belief that cults brainwashed their members became a unifying theme among cult critics. And in the more extreme corners of the anti-cult movement, techniques like the sometimes forceful "deprogramming" of cult members became standard practice.