There's always going to be more people that don't care, unless you know everyone on the planet.
The people who I care about, care about me - I'm not bothered about the rest of them, they're not important.
Never given it any thought, there are more people in the world who don't care about me than do. Why would I worry about it?
positive, as I am a blessed person with so many people that care and also a lot that really love me :)