Ants are quite amazing creatures, in my opinion they are only matched by humans in nature. They build HUGE cities of millions, setting up systems to support themselves in numbers larger then what should be possible to be supported in the area.
Know why I think we shouldn't pour cement down their holes?
BECAUSE ANTS SCARE THE BEJEBUS OUT OF ME!
I have been to several places in the world, know what I saw? Huge masses of ants. I've even encountered crazy mutant ants that jump and chase humans. I've seen complex road systems from ants, I've watched a colony kill a 50 year old tree IN SIX MONTHS!
Now think, what happens when you start showing the ants other tools? Here ants, see this? This is how you practice large-scale genocide on a pest.
Next thing you know, some super-mutant ant survives the insectocide and gets it into it's ant-head to do the same to us, and then we are screwed. THEY ARE EVERYWHERE MAN! You cannot escape the ants!
Our only advantage over them is our large size, but to compete, each human has to kill 1000 ants a day!
And they are so damn small, they are sure to slip by you and get you when you sleep...
So you see, if you teach an ant colony genocide, you DAMN WELL BETTER KILL THEM ALL SO NONE LEARN THE LESSON!
*Looks over his shoulder*
Oh my gosh, I think an ant is watching me... OH NO, IT'S COMING FOR ME! RUNNNNNNN!!!!!!!!!!