In the show "3 Body Problem" (I haven't read the book) the statement was made 'our civilization is no longer capable of solving its own problems'. Would you agree?
if politicians would grow a backbone, most of the problems we have would be solved
Politicians aren't scared to do what's right. Their job is to act in the interest of their fellow elites. The most successful at empowering their fellows are given more power. Solving society's problems isn't remotely on the agenda.
If anything, we want more cowardly and timid elites. Politicians with a backbone are just more dangerous predators.