How to deal with Youtube making videos 'pinkish'?
One way you could deal with this is to try some tests where you move the color of the video towards green until you get something that looks right when uploaded. (You don't say which editor you're using, but you could use the color board in FCPX or use DaVinci Resolve Lite, or whatever works for your setup.) Green is going to be the opposite of pink on the color wheel. You might be able to figure out the right color transform by taking a screenshot of the pinkish video and seeing if you can correct that. Then apply that same correction to some footage before uploading it and see what happens.