That’s actually a misunderstanding. Sure, regular bacteria can’t thrive at boiling temperatures, but some of then can at least survive boiling temperatures for brief periods of time. In the same way that tardigrades can survive the vacuum of space - they’re not really doing anything in space, but they can enter a state of hibernation that’ll allow them to survive
People crave routine, and experiencing a lifestyle change can be really difficult for a lot of people. It’s the same reason why domestic abuse victims don’t leave their abusers, or why people stay in loveless marriages - in their minds, it’s easier to bear with the abuse than to adapt to an unknown lifestyle.
But human emotion is short-sighted. It can only see imminent uncertainty and change. It’s the role of your conscious mind to think further ahead and determine if you stand to benefit from the change. If you’ve got a job lined up that you think will suit you better, then trust your judgement