Hi Dan- Thanks for your picture of your sad cherry tree. I definitely see signs of gummosis and some pretty severe bark damage. As cherries do not do well in our area without a pretty severe spray schedule, I think this tree is probably a goner.

I do have a pie cherry with gummosis that I have let limp a long for a few years since I get enough for about 2 pies a year, but it doesn't have nearly the bark damage I see in your picture. Perhaps a fig or persimmon tree would be less stressful.
https://pnwhandbooks.org/plantdisease/host-disease/cherry-prunus-spp-gumming
So sorry there's not a lot you can do for this poor tree.

Thank you Rhonda. Sigh. We do have two fig trees already. They are young. Do you have a good pruning guide for fig trees?

Hi Dan- You can always try the drastic cherry cutting idea, but the gummosis is systemic and won't be "cut out." Like you, I love the idea of growing my own cherries, but right now the Willamette Valley is just not the right place. Maybe someday there will be a cultivar...
https://oregonfresh.net/education/oregon-agriculture-production/oregon%E2%80%99s-cherry-industry/

As to the fig pruning, I'm attaching an article but you will have to skip down to the bottom to find the pruning advice. We usually prune ours in late January or February. Just think of them more as a bush than as a tree so you get 6 or 7 main stems and keep them at a reasonable height for picking. The fruit comes on the one year old and new growth, so it's fine to take out the older branches once they are established. Last year we got so many figs I couldn't even give them away. Now if only they tasted like cherries...