I went in this fully expecting you to be correct but drastically pessimistic in terms of hard numbers. Instead you were exactly wrong on the easiest point to check divorce rate. Short men tend to marry later on average but divorce at a substantially lower rate.
https://www.huffpost.com/entry/link-between-mens-height-divo...
The part about 200x the matches is both obviously pulled out of the air and grossly exaggerated. It looks like on average women tend to prefer men who are taller but not hugely different in height from themselves.
https://journals.plos.org/plosone/article?id=10.1371/journal...
If you are 5'6" you are most apt to be most attractive to women who are 5'4" or shorter which is helpfully 43% of women in the US.
You say you are very likely to die alone based entirely on a malarkey stat you pulled from thin air. You don't need hundreds of matches in a dating app to find one person you want to spend your life with. You need to instead cultivate qualities that would inspire ONE of many potentially worthwhile mates out there to make time with you and then work on enriching your life and relationship.
The problem with this fatalistic attitude is twofold. Firstly it spoils all hope of success to believe in yourself not one whit and second it holds that somehow MEN or at least yourself are rational whole mental and emotional creatures while somehow women are irrational animals who somehow cannot even see you. It's degrading to you and to hypothetical mates.