People are generally aware of the importance of good nutrition, physical exercise and all things health-related. They understand that what they put into their bodies affects their physical health. Underappreciated is a truth just as, if not more important: that what one puts into one's mind affects one's mental and spiritual health. The soul has its foods and its poisons just as the body does. This simple truth, known for centuries, goes unheeded while liberals fall all over each other climbing aboard the various environmental bandwagons.
Why are those so concerned with physical toxins so tolerant of cultural toxins? This is another example of what I call misplaced moral enthusiasm. You worry about global warming when you give no thought to the soul, its foods, and its poisons? You liberals are a strange breed of cat, crouching behind the First Amendment, quick to defend every form of cultural pollution under the rubric 'free speech.' But honest dissent you label as 'hate speech' and you shout down those who disagree with you.