Answer:
Group Polarization
Step-by-step explanation:
Group Polarization in social psychology is a concept used to describe the tendency of a group of individuals to make decisions or take actions that are far extreme and different from the initial attitude or actions that each individual was once inclined to or predisposed to.
Group polarization can foster violence, terrorism, public outburst and other activities or actions that might destabilize a society.
The concept in social psychology that best explains the trend illustrated in the question above is group polarization.