Protection or preservation?

I have had an internal battle for a while. I believe children are sponges-they soak up everything in their environment, which determines who they become. The music they listen to, the friends they have, the books or movies that entertain and fill their minds. It all defines them (as it does with us). I have always preserved the best of the best because that is what I am encouraging them to become. I remember a time in my life when we didn't have the television channels and so I had a lot of control over the kind of entertainment that entered my home. For fun I got all of the series of Little house, Andy Griffith and Leave it to Beaver. All the while supplementing with classic books and real life discussions with my children. There was a time I felt in control of it all and I had peace that I was raising my children up unto the Lord. I felt complete joy because our home was filled with the spirit and I was teaching them correct principles. The strange thing is, I was lost in my service with them. I spent hours with them, never a moment for myself hardly. But it is for this very reason that I care so much. I have sacrificed so very much for them. They mean EVERYTHING to me.

I have never taught them to look at others as bad, rather I want them to only judge based on their personal safety. What others may do is their choice but each of us has a responsibility to discern what will harm us and to stay away from it. I don't want to come across as self righteous. I am just overly protective.
Now that I am at my In-laws home for the time being, I find I have no control over anything. They are good people, every one of them. Among the best and of whom I love dearly. But differences in opinions and upbringing can pose a challenge that I feel threatens what I have taught my children. I have worked endlessly for years teaching them the best I know how. I like that my children don't like Lady Gaga or Hanna Montana. I like that they know about sex at an appropriate age where they can be mature enough to respect and handle it and that I can teach them in a loving atmosphere while emphasising the sacred, private nature of it. I like the influence the positive music and tv shows has had on my home and my children.
It's been difficult to give up everything secure that I have ever known and to feel many different opinions thrown at my family. I feel out of control and out of place. Am I too protective? Or is it that I just want to preserve what is good and what is right? Is it okay for kids to like the current role models that kids have? Is the modern music okay? What message or agenda does Hollywood have for our children? Is it okay that a child's highlight for his/her life is a video game? According to Philippians 4:8 it says...

"Finally, brothers, whatever is true, whatever is noble, whatever is right, whatever is pure, whatever is lovely, whatever is admirable—if anything is excellent or praiseworthy—think about such things."

I could find many more. But is it not ideal to stay away from wrong all together? Is not good good and evil evil? Things either come from God or they come from the Devil. I take this seriously. And I feel responsible to teach my children what is right and what is wrong. I am not saying that they will not come across wickedness at some point, they will and they should to gain wisdom. But what I am saying is I feel it is a sacred duty of mine to offer them what ever is true, noble, right, pure, lovely, admirable, excellent and praiseworthy. Imagine raising a sober generation such as Nephi, Moroni, Joseph Smith or Joseph of old. Those men were who they were because of the homes they grew up in. As our belated dear prophet, Gorden B. Hinckley wrote:

"E. T. Sullivan once wrote these interesting words: “When God wants a great work done in the world or a great wrong righted, he goes about it in a very unusual way. He doesn’t stir up his earthquakes or send forth his thunderbolts. Instead, he has a helpless baby born, perhaps in a simple home and of some obscure mother. And then God puts the idea into the mother’s heart, and she puts it into the baby’s mind. And then God waits. The greatest forces in the world are not the earthquakes and the thunderbolts. The greatest forces in the world are babies.”1

"And those babies, I should like to add, will become forces for good or ill, depending in large measure on how they are reared. The Lord, without equivocation, has declared, “I have commanded you to bring up your children in light and truth” (D&C 93:40)." Why do I feel so strongly about these concepts, yet why do I feel so alone in it...