I agree that it is not just the extremists who harbor bad thoughts or engage in bad acts, but they are usually the source of the polarization and try to keep education and communication of the main stream from moving forward.

In this quote, Joichi Ito addresses the role of extremists in creating societal polarization and hindering progress in areas like education and communication. He acknowledges that bad thoughts or harmful actions are not exclusive to extremist groups, but suggests that extremists often serve as a source of division, using their influence to prevent constructive dialogue and progress. Their extreme views and actions can create a sense of division, making it harder for broader societal conversations to move forward.

Ito's statement emphasizes that extremists can disrupt the flow of communication between the mainstream and other parts of society. By sowing discord and promoting intolerance, they prevent meaningful exchanges that could lead to solutions or broader understanding. The mention of education specifically underscores that progress in society often depends on open discussions and the free exchange of ideas, both of which are stifled when polarization is allowed to flourish.

The quote also alludes to the idea that extremism thrives on blocking cooperation and consensus-building. By forcing people into opposing camps, extremists make it difficult for moderate voices or compromise to emerge. This stagnates progress in various domains, especially in areas that require broad collaboration and mutual understanding, such as public policy, social reform, and educational advancements.

Ultimately, Ito’s statement calls attention to the destructive impact that polarization and extremist viewpoints can have on societal progress. It highlights the need for open communication, a willingness to engage across differences, and the importance of maintaining a balanced approach to prevent extremists from derailing constructive dialogue and forward movement.