Can the world win against Corona ?

Yes Since Many Viruses Appeared, and Humanity Defeat All of Them.

Yes, eventyally it will as with past pandemics.

We've gotten thru a lot worse .......................................

It definitely will one way or the other.  Either we will come up with an immunization medicine and the world will win because we will have defeated the virus.  Or we'll all die and our decaying corpse will nourish the earth as fertilizer, so the world wins either way.  

Yep, but only if we work together, and not apply brutal sanctions on other countries and restrict access of medical equipment to other countries like the United States is currently doing.