I feel your frustration that they don't fund certain things, but this should not be called crushing morale.
Please remember one thing: the reason YCombinator is a monopoly is that others are cowardly, don't know how to invest at the seed stage and help founders build huge, scalable businesses with a community of awesome people around them. This community is a hallmark of YC, and one of the obvious things that must be true about any founding group that has at least 2 members is that by definition they are social enough to keep a group of at least 2 cofounders together.
If you feel YCombinator is a monopoly you have to please by having a cofounder, why don't you get a cofounder?