Many here forget that Yamato post Wano will follow Oden's will, either in the crazy way she's doing now, or in a healthy way, where she accepts that she's not Oden, but will also continue to value his will.
In both cases, it would be quite counterproductive with what Oda has built through the character, with her going sailing alone (whether the fans / haters like it or not). Being that Oden could not go sailing alone, because he was totally useless, in terms of navigation, not knowing where to start, etc.
And the most important topic (like it or not) is that in the OP world, to achieve your goals you need other people (nakamas).
Yamato only has 2 options: stay with Momo or be Strawhat, and I know this will drive the fandom crazy for better or worse.