The phrase "polarizing nature" refers to something that strongly divides people's opinions and causes strong disagreements or conflicts. Full definition
Add in the increasingly polarized nature of politics at the federal level, the general disdain Hillary has long had for Obama, and the failure of the current administration to build a strong political base for Democrats at the state level, and Hillary, being the political animal she is, likely sees embracing reform as more nuisance than helpful in building her political legacy. (dropoutnation.net)
The charges illustrate the polarized nature of the climate change debate in the U.S. «You'd be challenged, I'd bet, to find someone who supports the Kyoto Protocol and also thinks that this paper is good science, or someone who thinks that the paper is bad science and is opposed to Kyoto,» predicts Roger Pielke, Jr., of the University of Colorado. (scientificamerican.com)
Which, in case you were wondering, is selling like hot cakes despite its polarizing nature. (drivemag.com)