Read the following argument regarding the impact of cultural heritage on education:
"Incorporating cultural heritage into educational curricula not only enriches students' understanding of their identity but also promotes inclusivity and respect among diverse populations. Furthermore, recent studies indicate that students who engage with their cultural backgrounds display higher academic achievement and emotional resilience. Critics argue that focusing on cultural heritage could detract from standardized educational content, potentially hindering overall academic performance. However, proponents assert that a holistic approach to education, which includes cultural learning, prepares students for a globalized world, enabling them to navigate and appreciate diverse perspectives and histories. Therefore, integrating cultural heritage into curricula should be viewed as a necessary step toward fostering both individual growth and societal harmony."
Based on the argument presented, evaluate the strength and validity of the perspectives offered about incorporating cultural heritage into educational curricula.