Build Back Better

What does Build Back Better mean? Something should be destroyed to build it back. Where have I heard it? The Communist International, in Russian, second verse:

Весь Мир насилья мы разрушим
До основанья, а затем
Мы наш, мы новый Мир построим;
Кто был ничем, тот станет всем.
We will destroy this whole violent World
To the ground, and then
We will Build Back Better;
Those who were nothing will become everything.

Well, more accurate translation of the third line is We will build our new World, but the meaning is the same. Notice that they need to destroy the whole World, no less.