It still makes a difference. Yes, the future is looking hectic, but now we have time to lay foundations. Even if half the population is wiped out (or more), we can lay cultural and physical foundations now that are seeds for the future.

In some ways, remember how lucky we are! We still have time and energy to prepare! We could be living in a world where the forces of intentional ignorance had done much more damage than they've managed. Yet we have excellent scientists.

Look at this: https://en.wikipedia.org/wiki/List_of_companion_plants

It's an amazing resource! Don't forget about our amazing collective resources! Now is not the time to neglect them!