You bring up the apostasy of some of the Protestant churches in some attempt to attach that to all no affiliated Protestans but think it's "off topic" to mention the same faults within the Catholic Church? Really?
Sexual abuse has never been a policy or doctrine of the Church. Evil people have committed those acts, and deserve all proper punishment, both here and in the afterlife.
My point is that, in general, non-Catholics approve or promote at least one or more of these non-Biblical positions: divorce, divorce and remarriage, homosexual fornication, cohabitation, and so called “same sex marriage.”
These positions, again, are held as matters of policy or doctrine. Obviously, this list can’t cover every non-Catholic entity. However, one only need look to the major non-Catholic Christian entities to find acceptance of divorce (Southern Baptist Convention: http://www.sbc.net/faqs.asp) Presbyterian, Methodist (http://www.umc.org/what-we-believe/the-nurturing-community) etc.
Since there is no single authority in each non-Catholic, Christian sect, their beliefs vary, even from church to church. Unfortunately, as listed above, these apostasies are the general rule, and not the exception.