I think that there should be no norm here and we should simply consider the fact that dating a non-EA may cause a value drift before making decisions. Being altruistic sometimes means making sacrifices to your happiness. If having less money, less time and no children can be amongst the possible sacrifices, I see no reason why limiting the set of possible romantic partners could not be one of possible sacrifices as well. People are diverse. Maybe someone would rather donate less money but abstain from dating non-EAs, or even abstain from dating at all. One good piece of writing related to the subject is http://briantomasik.com/personal-thoughts-on-romance/
I think that there should be no norm here and we should simply consider the fact that dating a non-EA may cause a value drift before making decisions. Being altruistic sometimes means making sacrifices to your happiness. If having less money, less time and no children can be amongst the possible sacrifices, I see no reason why limiting the set of possible romantic partners could not be one of possible sacrifices as well. People are diverse. Maybe someone would rather donate less money but abstain from dating non-EAs, or even abstain from dating at all. One good piece of writing related to the subject is http://briantomasik.com/personal-thoughts-on-romance/