Most protestors are so silly that they still don't even wear face shields and gas masks to shield themselves from basic pepper spray or tear gas used by law enf

Most protestors are so silly that they still don't even wear face shields and gas masks to shield themselves from basic pepper spray or tear gas used by law enforcement. Every obstruction lowers the number of truly prepared protesters. As for protection from weaponized infrasound, it could require a full-body metamaterial shield to deflect all incoming infrasound. And microwaves as we know require a faraday cage to dissipate them, but even then there can be some penetration near the boundary of the cage.