(CNN) If an adult male mocked a teenage girl, you would condemn it.

And rightly so. Because that is the sort of thing that -- no matter your politics -- we can all agree on. That adults should stay away from mocking kids. Especially publicly. Especially especially when more than 60 million people will see the mockery the instant you do it.

"She seems like a very happy young girl looking forward to a bright and wonderful future. So nice to see!" Trump tweeted sarcastically above a link to Thunberg's speech at the United Nations General Assembly meeting on Monday. "People are suffering, people are dying, entire ecosystems are collapsing," Thunberg told the UN audience. "We are in the beginning of a mass extinction and all you can talk about is money and fairytales of eternal economic growth."

Was she passionate? Yes. Was she upset? Yes. Does she have every right to those feelings -- particularly given the dire predictions about the warming climate and what it could mean for our planet? Absolutely yes.

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