Umm. No. You cannot outrun a bear. Running guarantees you will be mauled and probably killed.
If you were smart, you didn't enter bear country without bear deterrent.
Bears are not naturally aggressive usually, not like you see in movies.
Not that they can't be. Someone was mauled to death recently in bear country. You certainly don't want to mess with them or antagonize them.
If you're far enough away, back away slowly and don't look at them directly, but don't take your eyes off them either. Head for safety.
Other than that, you've got the same 4 choices that have always been there. Sometimes they work. Other times they don't. It's down to luck and circumstance really.
As far as your poem goes.....
It's the same. And people need to accept it and deal with it. There is no running from what's coming.
You make your preparstions as best you can. You become adaptale. You look to community. You deploy your strategy, knowing it might work and it might not. It's down to luck and circumstance really.