We're literally the most successful animal in the planet. Even a global catastrophe won't take us out when we're incredibly adaptable.
It may kill a lot of people but it's gonna be like hand sanitizer on bacteria. Even a 0.1% or even 0.01% who survive is still a whole lot of people left.
What do you mean by incredible adaptable? We have only existed for a short period of time as species and have been plentiful only for a fraction of that period during, so far, climate conditions that have have worked to our favour.
It certainly is possible because we have the technology to do so. We are adaptable because of our tech and our communication. Plus the sheer numbers of our species can probably survive most things in some sort of way. Gigantic hurricanes aren't going to kill someone in a bunker. Either is radiation or acid rain.
It is possible that we lose it all and have a runaway greenhouse gas problem like Venus. So I hear what you are saying. It can take us all out too. But it depends on what takes us out that keeps some of us here.