My interests were pretty much the same as yours when I was in college. When I was a teen in the early 80's, I decided that I wanted to be an engineer working at Bell Labs. I ended up going to a liberal arts school, which didn't have an engineering program. I took physics and fell in love with it and declared it as my major my freshman year. I ended up taking it all the way through to the Ph.D. and I've never regretted it.
If you get a physics degree, and like me end up working outside of academe, you end up with a title other than "physicist" because there are very few jobs advertised as such. The Society of Physics Students calls these the "hidden physicists."
For my two cents, obviously I view the world through the eyes of physics, but I would urge you to consider going in that direction. You sound like you would enjoy working in a lab as an experimentalist, and physics degrees appear to hold their value.
Ultimately though, do as I did and follow your heart rather than try to chase employment projections. It may be rather a Pollyannic approach, but if you study and work in an area you like for its own sake, you'll naturally do well and things will work themselves out. It has worked for me, anyways.