Rainbows in mythology go back to the Epic of Gilgamesh, and the Bhagavaradgita, amongst others, and used as an official flag of the ancient Incas.

The creepy sinister left likes to use benign words and symbols as trojans for sexual and psychological abuse:

In parts of Burma, for instance, rainbows are considered demons that threaten children. Tribes throughout the Amazon basin associate rainbows with disease. https://www.nationalgeographic.org/encyclopedia/rainbow/ the original rainbow pride flag that was first raised on June 25, 1978 in San Francisco's United Nations Plaza., by Gilbert Baker, a bumchum of Harvey Milk.

...but before that infection and infestation, you would find rainbows in Wagner's work Das Rheingold about Norse mythology, as Bifröst, the "trembling rainbow bridge" between Midgard (Earth) and Asgard ("heaven"), the home of the gods.

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Call "the left", far right; use the rainbow to represent normal family life. Reclaim the symbols, win the war!