Just as every else in life, I don't agree with everything but on balance this statement by many Christian leaders (mostly right wing) is an excellent affirmation of the direction our country needs to go.
On abortion, I agree with the sentiment and think we should use moral persuasion, but disagree with the political implications because at the end of the day if you're not willing to call women who have abortions criminals, and imprison them for killing an innnocent person, abortion will remain. Everything spoken of happens within a woman's body, ultimately it's hers and not ours. Yet, the aspiration to higher principles is desirable and productive.
On marriage, the document is accurate. I especially like the empahasis on the "gay marriage" being the symptom rather than cause of the problem. We have allowed the institution to weaken through divorce, infidelity, and lack of commitment. The proper perspective is "it's gotten so bad, now"... I agree with their prescription that we need to address the root causes as well as resist letting the problem get worse. Their admonition not to "hate the sinner" is appropos. As we all make numerous mistakes, but hopefully none of us would prefer others do them on purpose.
On religious freedom, I am generally in agreement that there are those who aren't content to advance their agenda simply, they have entwined within, a desire to eradicate the freedom of others that offends them. It is a delicate argument, but there are many who don't simply want tolerance of difference but unity of opinion: theirs.
Both sides have a legitimate stake in the public square, but at the end of the day we need to recognize a private sphere. Where that privacy begins should be up to debate but in a honest way.