Yeah, obvious clickbait. An animal is venomous, the venom is toxic (a toxin). I wouldn't call a cobra "toxic" unless it was constantly starting flamewars on Facebook.
Apparently you haven't heard of Cobra Kai
I mean, it would be a lot less useful in _battle_, but as a natural defense being toxic isn't that bad... as long as there have been enough of you for a long enough time and you are recognizable / memorable enough for your predator to know "not that one".