So, if you have assiduously followed _Star Trek_, you will note that any perturbations in the constant drip-feed of exceptional hopeful events into human history (most recent example: _Picard_ S2) invariably lead to humanity becoming a xenophobic fascist dystopian nightmare that slaughters its way across the galaxy.
(I mean, say what you will about the Romulan Star Empire, but getting their entire homeworld blown up didn't make them start committing casual genocides left and right and keeping skulls in trophy rooms.)