I think it's that humans are social animals Gary, and when we are locked up or restricted from interacting fully, we naturally tend to get a bit down ( dogs locked in a yard all day with no company will start pining and howling, and that's just a day!) We've been restricted for a year which we unfortunately won't get back. We are lucky at least to have this hobby, (or any other) which must lessen the stress to some extent. Many people have no hobbies, so imagine how hard it is for them to find something to do.
Once we figure out how to live with this virus, we'll be back to some sort of normal in no time, I'm sure. I feel sorry for the millions of business owners who have been destroyed by this, and consider myself lucky to be retired and building model boats etc, and not worrying about losing everything I have.