I’ve heard (don’t remember where) that the forces of good and evil have to balance out, so just as our generations are inferior to those before, so the level of possible evil has gone down, and there is nobody around any more who has the power to do serious witchcraft. Same with dybbuks.
Ayin ha’ra might be another matter, since envy certainly seems to find a place in the modern world. Maybe, since the Three Weeks are coming soon, we should make an effort to separate ourselves from any envy we might feel.