The phrase "to polarize the debate" means to cause the discussion or argument to divide into opposing sides that strongly disagree with each other. Full definition
These conclusions generated a highly polarized debate over the policy implications of MBH98, MBH99 for the nature of global climate change, and whether or not anthropogenic actions are the source.» (climateaudit.org)
One of the most polarizing debates in the fitness world lately is the front squat vs. the back squat. (johnalvino.com)
In the last few years, the No Child Left Behind act has polarized debate with the introduction of benchmarks and standards. (edutopia.org)