People instinctively love it when they see the rainbow, because it is God's promise to Mankind He will never destroy the Earth again with water!
Plus they were given permission (or stole!) the concept of using the Rainbow as an identifier from Jesse Jackson, who, when running for President, coined the phrase: The Rainbow Coalition, which was to signify his constituents were of all colors...
But the alphabet soup people hijacked it to make us have an opposite reaction, as they thumb their nose at God, who gave us the divine order of Mankind = Man (male) + Woman (female) = Husband and Wife! There are no other acceptable couplings! The alphabet soup people wrap themselves in rainbow flags as a cudgel against traditional Christians.
Satan twists everything because he is twisted! Those who follow him are the same!