If it hadn't been for collectivist thinking we wouldn't have had a labour opposition against abusive factory owners at the turn of the 20th century, we wouldn't have had revolts by an organized underclass (We) against oppressive regimes (Them) in the past, (and hopefully in the future), and we wouldn't have been able to organize an opposition against countries that attack other countries in the past, in the present and hopefully in the future.
Yes, everything can of course be abused, also a collectivist thinking, but there is no need, in my opinion, to oppose to the idea of a collectivist thinking, a prerequisite for organizing opposition and a powerful political tool, just because it can be abused. Bitsofnews.com Giving you the latest bits.