‘Noise’ re the embassy move has risen quickly since inauguration - Trump has already talked to Bibi, who has already booked a trip to Washington in February - the mayor of Jerusalem has said he’s been in talks with Trump officials about the move - so the intent to make the move looks serious - or, with all parties saying it will involve a ‘long’ process, this could simply be the beginning of what will turn out to be a slow walk that leads nowhere. Certainly, you could never make the move without thoroughly thinking through all the factors - how to do it, how to sell it, how to manage the various consequences - so it taking time is not surprising. And, since it will involve negotiating details with Israel, you have to figure out whether to bring or offer to bring the Palestinians in on the negotiations - hard to continue to express support of the two state solution and not invite them - but if your true goal is an undivided Jerusalem as the Israeli capital why would you invite them - unless you believe Abbas would or could never accept the invitation regardless of terms and that suits your agenda.
To me it simply comes to whether or not you view the Palestinians as serious re negotiations towards a ‘fair’ settlement - if you believe the Palestinians are sincere you’ll obviously oppose the move - if not and think the Palestinians are either incapable of ever accepting the legitimacy of a Jewish homeland in ‘Palestine’ or will only acknowledge the reality of such when forced to, then kinda looks like you must support the move as the logical next step. I clearly think the latter is true.
