First, what a great topic! Rep to the OP! I see this from a few perspectives: my character - Ameline's perspective, and my personal 'live and let live' perspective as a person.
I) From Ameline's perspective, she isn't exactly traditional. While she tends to consort with fellow Wildwood Elezen vis-a-vis romance, she adopts a policy of aesthetic appreciation for all races and both genders. As of this moment, she participates in a romantic companionship with a fellow Wildwood Elezen female. That said, she has been in the company of a Sea Wolf Roegadyn before and was quite content with the situation. Despite seeming tolerance, if she were to actually attempt to procreate, she would never go outside of her own race (or even with a Duskwight, for that matter). The lore dictates that Elezen are the 'firstborn':
Due to these racial traits, Ameline would feel like a 'half-breed' would rob her offspring of his/her godsgiven hereditary entitlements. In regard to simply consorting with Hyur, Ameline is wary to trust them. Not simply for the sordid history between the two races, but also due to her own personal history of not getting on well with the Hyur she knows with a small handful of exceptions.
II) As far as my live and let live philosophy as a player and a person, I say go wild! It's not my place to tell someone that they aren't following conventional lore and should rethink their character's proclivities. So long as it falls within the realm of possibility, I love the diversity! Also, I admit to defaulting to the whole Lalafell as children mentality from time to time. But some RPers such as Chachan have shown me through my 3rd party observation that this is absolutely not true! Thanks for the new perspective!
Anyways, my 2 cents!