What are the reasons for the numerous political and religious conflicts on the map of Eurasia?

Eurasia differs from the rest of the continents in the diversity of peoples, existing religions, languages, etc. All world religions and their various streams, as well as hundreds of sects over several thousand years have spread on this continent. Also, several times there have been great migrations of peoples, as a result of which the original boundaries of their residence have shifted greatly. In this historical context, many religious and ethnic conflicts took place that are not observed on the rest of the continents, where the population is more homogeneous.