Many of us think we should not allow such language.
We tolerate too much, we let the wrong things go on for too long. This is because Americans have a laudable background of tolerance and acceptance of diverse ideas. We do not like to disturb things. We do not like to intrude.
But now, and more-so in the future, our world is more fragile and cannot tolerate abuse. It starts with language and the presentation of the issue. The issue of human caused global climate destabilization is not a debate. It was never debated, it was studied and investigated and science has more than a few decades of surety. Trying to stage a debate does not mean there is any dispute.
This web site is just a form of speaking up about one way of harboring denial and preventing change.
The best way of expressing that is to speak up whenever you see it and hear it.