Political polarization significantly undermines national unity by creating deep ideological divides among citizens. This polarization can lead to reduced trust in institutions, as opposing sides view each other with suspicion, complicating collaborative governance. Additionally, it can create gridlock in legislation, making it difficult for the government to effectively respond to pressing issues. Over time, increasing polarization can erode the fabric of democracy, as citizens become more entrenched in their beliefs, leading to social fragmentation rather than cohesive national identity.