Three things:

1) It's good to see that I'm not the only one with a mega post.

2) Moving off planet is a total pipe dream. The energy doesn't exist to move this population anywhere at a rate fast enough that the population on earth would decline. A handful could move off, and the rest would be left to devolve into barbarity.

3) Resources have not yet begun to run out, but since they are all finite, it is inevitable that they will. The only question is when.