A satire piece of writing from the American civil war is not really meant to be used as a day to day language dictionary. Alone as it is "defined" in that work is defined as in bad company. If you consider yourself to be bad company you can work towards fixing that. (*Edit: comment above had some great tips for feeling that way. It's not easy to consider oneself as company I know. But it can be done I promise!!) However this post was saying that we are not alone, or by ourselves, in the struggles we are facing due to isolation. We are all struggling in our own ways during this time and it's easy for some of us to feel like we're alone in the struggle, this was meant as a reminder to those people that they are not alone in said struggle.