i'm with you. i don't think there's a good existing alternative. even if a mass exodus happens the lemmy devs have said the site will crash due to traffic. kinda sucks because at that point lemmy will be passed over. how do we replace the wealth of content and community? reddit has a stranglehold on the formula and no existing alternatives could handle an exodus at this point.
i think you're right that although the API change has made a lot of noise, this won't be the exit folks are talking about. i think the straw that breaks the camels back will have to be a particularly egregious change, a change that affects the casual user.
Edit: more words
nah that guy lives down the street