"Any infringement in this case, however, is acceptably minor. "
And that is exactly how it starts. A little here, a little there.  
The roof on your house can be destroyed with just a few drops of water getting in each day unnoticed and unstopped. Once your roof is gone you have no protection.  Same here. We allow our protections to be eroded a little at a time and call it "acceptably minor".
Then don't cry when something major happens and you are defenseless and treated like cattle.