It is true that globalisation leads to cultural heterogeneity. Globalisation does give rise to a uniform global culture i.e. cultural homogeneity, but it also causes an exactly opposite effect called cultural heterogeneity.

Cultures are not static. They're dynamic. Cultures are always in the process of development and at every point in time, they are undergoing some gradual transformation. There can always occur changes in a culture without changing its basic essence. Such changes caused by external influences only increases our choices. They don’t restrict us. They give individuality to our culture. Therefore, it would be correct to say that globalisation leads to cultural heterogeneity.