Here's my take: If Greta Thunberg were black, Arab, Asian, or any other group, no one, beginning with liberals and MSM, would pay any attention to her. She would not have been invited to speak at the UN. If a person of color was, it wouldn't have been promoted the way Thunberg was. Her publicity and stature is not the product of free market choices; and if some argues it is, that only exposes the racism in their free market choices.
She's supposedly representative of the next generation, which according to liberals, as a white person is going extinct. So who cares if white people die off from zero population growth, abortion, get fried, suffocate, or drown in a climate catastrophe? What's happening is liberals are calling on the next white generation to solve the planet's problems cause blacks, Asians and Hispanics are too stupid and incapable. Thunberg is the epitome of liberals breeding the notion of white supremacy into the next generation.