You can't do this because then 2K will just read that as people only caring about MyTeam and will spend all their efforts on that mode.
The real way is to stop buying VC, stop playing The Park (the half-baked mode likely designed to promote gear sales), and stop playing MyTeam (likely their biggest VC cash cow). Or just stop buying the product until they lose more with VC and a smaller user base than they would have made with a larger one and a more fair VC implementation.
But starving 2K of data will just cause 2K to use and misread skewed data by people still paying 2K to play what they already purchased.