The phrase "a wave of humanity" is correct and usable in written English.
It can be used to describe a large group of people moving together, often in a context of migration, protest, or gathering.
Example: "As the concert began, a wave of humanity surged towards the stage, eager to get a closer look at the performers."
Alternatives: "a surge of people" or "a flood of individuals".
At the next stop, a wave of humanity rolled out, pushing me along with it.
They are at once a wave of humanity, and the storm-blown waves of a sea that may claim their lives.
"It was a wave of humanity that brings some things back into focus, that maybe we haven't lost all hope in this world," Derek Simmons, an Alabama native who quickly organised the chain and swam with his wife Jessica to rescue the stranded group, told the Guardian on Tuesday.
Dusk has fallen, pedestrian lights turn green and a wave of humanity converges in the middle of the five-way intersection before dispersing again in all directions.
Speaking to CNN's Don Lemon later on, Moore said he felt as if the protests were "a wave of humanity" pushed along by people who are "scared for their future".
Before long, there is a clumsy accident, a burst of violence, a moment of calm and then, suddenly, a tidal wave of humanity surging in and out of every room, many of them claiming to be huge fans of Him's work.
He is solitary, lean, trying to hold back a tidal wave of humanity.
Even more encouraging is that Mr. Moran has to shout to be heard over the most hopeful din in the neighborhood -- a booming wave of humanity eating and drinking, talking and laughing inside the reopened Moran's.
As the ball crossed the boundary and Lara raised his hands to the sky, a tidal wave of humanity swept across Antigua's Recreation Ground, engulfing and overpowering the constabulary ring that had been posted around the boundary and swamping the hero in the maroon hat.
Every spring, China's cities plunge into chaos as a tidal wave of humanity attempts to return home by train for the Chinese New Year.
