David’s plugin worked. I think because you can specify the exact hook location.
https://wordpress.org/plugins/gp-social-share-svg/
Now I just need to find better icons to use with it.
I should mention that there seems to be another similar/related issue. It’s not just the sharing icons that are being copied to the top, also the jetpack “related posts.” Nothing shows up because I don’t have any other posts, but you can see it when you go into customizer.
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