No one is pointing out that Einstein himself considered gravity a force. The geometric nature of the math does necessarily mean gravity is not a force.
This Quora answer conveys problem of this line of thinking must better than me.
Answer to Why do physicists consider gravity as one of the 4 fundamental forces, but according to the best theory of gravity (GR), it is not a force at all? Is that why unification is not possible with QM? by Viktor T. Toth
https://www.quora.com/Why-do-physicists-consider-gravity-as-one-of-the-4-fundamental-forces-but-according-to-the-best-theory-of-gravity-GR-it-is-not-a-force-at-all-Is-that-why-unification-is-not-possible-with-QM/answer/Viktor-T-Toth-1?ch=15&oid=1477743682570707&share=0b15cad2&srid=uDAVs5&target_type=answer https://www.quora.com/Why-do-physicists-consider-gravity-as-one-of-the-4-fundamental-forces-but-according-to-the-best-theory-of-gravity-GR-it-is-not-a-force-at-all-Is-that-why-unification-is-not-possible-with-QM/answer/Viktor-T-Toth-1?ch=15&oid=1477743682570707&share=0b15cad2&srid=uDAVs5&target_type=answer
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