Apple are into the whole ecosystem paradigm, that's where their priority is and everything is designed to accommodate just that, so practically speaking, the minute you decide to opt out, you'll be struggling against it.
I didn't like iTunes all that much when I was on PC, though I can't remember exactly how things worked for pictures. So it's definitely not just you.
Since I'm on Mac and everything here is Apple, I am actually enjoying what the ecosystem means to me. It's pretty much all benefits.
Doesn't mean that we don't occasionally have to struggle when trying to sync things, even within the ecosystem.