"Just a work of art"
"Just a musical composition"
"Just a book"
"Just a piece of software"
"Just a photograph"
I don't think folks should be able to steal these things (or anything) just because they're "easy to copy". I also don't think that adding more DRM to the world (ie. "some .js code") is the answer.
> Just because it's possible to steal something, you/society should allow it to happen?
A closer comparison would be: you heard me tell a story. You don't think society should allow you to tell it to someone else because I 'own' it, and to tell someone else is to 'steal' from me.
You can spend your life arguing over who copied whom and by how much - or you can accept the flattery, get on and do the next thing.
Regards your second sentence, that is what I'm saying. A large company that's put lots of resources into something fighting of another company who "stolen" their idea, while tedious, makes some sense. For an individual, I can't see how it's worth the time, stress or money to worry about copyright.
There is no copyright on web pages. Web pages are there to be seen and thus their source to be copied. By even watching your page its in my cache now. I could copy it and use it.
If you where a little bit smarter some .js code might have protected for easy copying, but you didnt do that, who to blame ? you perhaps?