If you enter into debates with weak ad hominem arguments about someone's age, you aren't going to change minds and you will be steamrolled by anyone with an understanding of the topic.
Skimming your recent posts, I don't think our political views are particularly different, so it's in both of our interests if you are using the best arguments possible on these topics. This was not an attack on you as a person, so your hostile response is unnecessary.
I find solace in doing things that will help others and maybe improve the world. Local food pantries and shelters need help now more than ever. Mutual aid groups can also be quite effective if nonprofits in your area are sparse or otherwise ineffectual.
Perhaps the actions of a few individuals won't change much, but I prefer it to sitting around and waiting for the world to burn to a crisp.