“Naturally, this raises the pregnant question of why an openly gay person would try to attend a private evangelical/Bible-believing college in the first place.”
Wrong.
The compelling question is why should an openly gay person be unwelcome to attend the College, given the fact that the vast majority of gay Americans are Christian, as nowhere is there a consensus in Christian doctrine or dogma that homosexuality must be condemned as a 'sin.'
Refusing to allow gay students attend is based on unwarranted fear and hate, not 'religion.'
Moreover, in the context of private society, and in the context of a free and democratic society, absent government and the courts – in this case a private college in conflict with private citizens – the issue of 'rights' does not come into play; private citizens are at liberty to speak out in opposition to the policies of Gordon College, where the College's 'rights' are in no way being 'violated.' No one is advocating a 'law' be enacted 'compelling' the College to accommodate gay students, nor is anyone seeking to undermine the College's right to free association.
Not only is this conflict not 'troubling,' but it should be encouraged, as the people alone are perfectly capable of resolving such issues without government interfering. Indeed, this was the Framers' intent when they created our Constitutional Republic: to safeguard a free and democratic society – where the conflicts and controversies of the day can be resolved by the people themselves, absent the need for government or the courts to become involved.
Consequently, this issue has nothing to do with 'liberals,' it has more to do with how uncomfortable most conservatives are with dissent and conflict in a free and democratic society.