What do you think the plot of the modern arc would be if Fushi woke up earlier and met young Izumi, Mizuha's mother, instead of Mizuha herself?

Hello everyone. I apologize in advance for any mistakes. I'll say right away: I haven't read the manga (I only watched the anime and know some spoilers), so some of my assumptions about Izumi and her opinion of Fushi and the Guardians might be untrue, but even so, I don't mind spoilers in the discussion. So: What is your opinion on this? As far as I understood from the canon, Izumi was outraged and resisted precisely the Guardian role, and not Fushi himself. This makes her unique! Also, I think it's worth asking: What guarantees are there that young Izumi won't fall in love with Fushi, like many of her predecessors, and what guarantees are there that the Mizuha we know will even come into the world if Izumi focuses all her affection on Fushi?