I agree it’d be good do rigorous analyses/estimations on what the costs vs benefits to global poverty and animal welfare causes are from being under the same movement as longtermism. If anyone wants to do this, I’d be happy to help brainstorm ideas on how it can be done.
I responded to the point about longtermism benefiting from its association with effective giving in another comment.
I’m the author of a (reasonably highly upvoted) post that called out some problems I see with all of EA’s different cause areas being under the single umbrella of effective altruism. I’m guessing this is one of the schism posts being referred to here, so I’d be interested in reading more fleshed out rebuttals.
The comments section contained some good discussion with a variety of perspectives—some supporting my arguments, some opposing, some mixed—so it seems to have struck a chord with some at least. I do plan to continue making my case for why I think these problems should be taken seriously, though I’m still unsure what the right solution is.