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!

I understand where you're coming from, however you must take into consideration that your individual actions are perceptible by your peers.

A difference in culture has much more potential effect than what may be perceptible.

You may not control Congress, but you can control your actions and influence your peers. Tiny influences can impact in an emergent change in the future.

Of course, this is highly subjective and probably more in the field of Ethics than anything else.

I do see it as ethics, but you are right.