Supergirl, Season 4

Manchester:
Every action has an opposite and equal, yeah? This "Earth first" Liberty crowd, they hurt aliens. And what, they don't think we'll hurt them in kind?

J'onn:
That's London.

Brainy:
And it looks like they stole the Crown Jewels to make a bigger statement.

Manchester:
Why? 'Cause Supergirl says that's not the way? Supergirl's like a folk tale. In theory, comforting, noble. In reality, oof, ill-equipped and clinging to ideals of a time long past. When they go low, she goes high. We put them six feet lower. We're through giving these devils the benefit of the law. Supergirl's done. This is the era of the Elite.