What firewalls and AV products have you personally tested Ripley?
Just FYI, my firewall, at home, traps any buffer overflow exploit, including the latest one hitting Java. I tested it to be sure. Those types of exploits are easy to detect. Of course, my firewall has been a pet project of mine for many years.
As a side note, it is hard to take you seriously Ripley, your rants borderline on irrational with no substance to back them up. That is just an observation.