Well at least Sarin knows what they want to do when they grow up.

Well, that was lame. By being noncommittal, you've left me with reason to believe that you condone the production of chemical weapons.
There were at least five different responses you could have gone with:
1. Admitting your statement that "every molecule has the right to exist" may have not been entirely correct.
2. Declaring that sarin does, in fact, have a right to exist, and that it is our moral obligation to produce it.
3. Accusing me of taking your sentence out of context, and then restating your post in a form that wasn't easily dismissed. I'd be annoyed by this one, but I likely wouldn't belabor the point.
4. Replying with something off-topic, funny, clever, and/or outrageously stupid.