You get points for tenacity, I'll concede that. But your argument is simply wrong. You stated: "Killing someone while drunk is called involuntary manslaughter" Of course, most of the time it is. But you didn't qualify with "usually" or "often" (or with "while driving", for that matter). A single example of killing someone while drunk NOT equating to involuntary manslaughter, is sufficient to prove your statement to be false, same as if you had said "prime numbers are odd."
The flaw in your logic this whole time is your insistence that anything unintended = accident. Things can be unintended but also not an accident. All the previous examples. Involuntary manslaughter laws tend to use the word "unintentional" but not "accidental." How about the Free Solo guy -- certainly he didn't intend to die, but had he slipped and fell, when the whole point of the climb was to do it without any safety equipment, it couldn't be classified as an accident. Car "accidents" are rarely accidents -- in most cases, one party failed to follow a safety signal or violated some rule. And yes, if you deliberately drop a bomb near a border, you can't claim the allies you killed on the other side were accidental. Collateral damage, yes, accidental, no.
If you cannot see that, or that it isn't "accidental" when a serial drunk driver kills someone, or a gun getting fired during a robbery also isn't accidental -- or when a government unleashes a computer virus that it knows will likely affect hundreds/thousands of computers owned by people or companies it doesn't care about -- well, you're maintaining a position about which few people would agree.