Here's what makes it relevant:
Ladida was saying that if they were dumped in the middle of the Amazon, then they wouldn't have a chance of survival. This is the basis for humans not being an apex predator. However, if you dump a tiger in the middle of the city, it would no longer be an apex predator. And yes, if you take a killer whale to Niger, it will no longer be the apex predator. But here, in my current natural environment at this time, I am technically the apex predator. Will my status change if I change locations? Yes, but so would the status of every other predator.
Since humans no longer have the biological need to be the apex predator through physical hunting and eating, this trait has manifested itself in some people through other ways. That's how we end up with Alpha males/females, wife-beaters, and serial killers. They have this natural desire, a carnal compulsion, to destroy creatures even though they don't need to do it for food anymore.
Hmm, that wasn't the point I was trying to convey. Humans as they are, without man-made weapons to assist them, would not be able to assume the position of apex predator. Hence the example I put forward. The other apex predators do not rely on weapons to take down their prey. This was posted as I agreed with Waser's statement.
Now if a tiger somehow managed to get into my city, and found itself in my vicinity, there is utterly no way I would be able to take it down. I don't have the weapon/s necessary, I don't have a car to try and run over it with or make a speedy getaway, and I don't have the tough animal hide, claws, teeth or muscles which would be required to successfully defeat this beast. If tigers frequented my area to hunt me, I'd probably be better prepared, but that would only be because of the inventions of other humans, rather than my own.
As it stands right now, I am not an apex predator, as I'm in no position to kill animals that may consider me yummy.