网友抄写的句子不完整，漏掉了条件从句。

【提醒】今后提问题必须保证句子的完整性，因为有些词语的省略是根据上下文而定的。有时候，主句省略词语是为了避免跟状语从句重复有关内容。

If American society and business won’t make it easier on future female leaders who choose to have children, there is still the ray of hope that increasing numbers of full-time fathers will.

本句will 之后，承前省略了choose to have children。

there is still the ray of hope that increasing numbers of full-time fathers will(choose to have children).

【翻译】仍然有一线希望，越来越多的全职父亲将会（选择要孩子）

that increasing numbers of full-time fathers will 是hope 的同位语从句。