Hi Mort, welcome to this forum. I hope you gain some insight into ethics here. You certainly feel strongly about a few things. I have outlined below why perhaps, such strong views should be tempered with consideration of a wider perspective. I hope this is useful.
Ethics is not about right or wrong, but is about the challenges that face us all in dealing with life's dilemmas. Ethics is about considering all aspects of an issue. I refer you to http://www.ethics.org.au/content/what-ethics
In your post here, you have quoted something I think from your "Christian ethics" class. You may rest assured that the content of this quote is nothing to do with ethics, it is only listing someone's morality and one that as you say, is not accepted by many people today. Many people misunderstand the difference between morality and ethics, and interchange the two leading to poor conclusions. The correct name for the class should be "One version of a Christian morality".
In you post you have stated a view, which while it highlights a common problem with an aspect of religion, it also contains serious omissions. Obviously, all Christian behaviour or morality cannot be correctly dismissed because of your experience with your one "Christian Ethics" class. I know others have had a positive experience from such classes.
If you were to discuss your quote with your teachers, it would be vital for you both to understand the difference between morality and ethics. Morality is absolute and fixed, while ethics is doing what is right for the right reasons. Ethics is about asking questions, not stating dogma. http://www.ethics.org.au/content/understanding-ethics#2
Some people find it too difficult to ask the difficult questions and so revert to dogma and simply follow the morality set down by their religion or the authorities. If you wish to grow and develop in an ethical manner I would suggest you question these sort of issues, but do so in a respectful way and take great care to listen and understand the other person's point of view. No one, I, you, the Pope or the Prime Minister has a monopoly on wisdom and wisdom is gained by experience, wisdom is not gained by intelligence alone.
My suggestion is that you discuss ethics first, then morality. Ethics asks the hard questions and the outcome can be used to develop a morality, morality fixes the answer first then rationalises itself.
Your post here is about morality in your Christian class. Everyone has a different set of moral values and the world will end before there is one agreed set of moral values. Maybe the morals put forward are better than the alternatives? Deciding who and how people are impacted and then deciding is thinking ethically. Thinking something is wrong because it impacts oneself, or you disagree without considered thought for others who have different views is not thinking ethically.
I hope I have given you food for thought and your next post is a more gentle one, seeking the thoughts of others rather than making very controversial statements based upon a single life experience. Wisdom comes with age, sometimes! Take it easy.