The use of megaphones is a domination strategy/tactic.
Those using megaphones at protests and riots seek to dominate their subjects whereby their amplified voices will be heard above all the other voices.
The closer they get to their target, the more brutal the noise assault.
It’s a dictatorial and control tactic which robs subjects of their ability to form and/or express their own views.
‘So loud I can’t think’ is the goal. The one with the megaphone seeks to control your mind through loud noise so that you can’t think for yourself while simultaneously inserting their view so their words become your thoughts.
It’s a highly manipulative, coercive tool to render you helpless so the dominator can possess and subjugate you.