Final answer:
The biggest hurdle in global evangelism is the resistance stemming from cultural, religious, and political differences. Globalization has not necessarily achieved widespread economic freedom, which also impacts the spread of religious ideas. A global government to oversee evangelism challenges national sovereignty and poses significant political and ideological challenges.
Step-by-step explanation:
The most significant hurdle in global evangelism is the resistance due to cultural differences, religious beliefs, and political barriers. Efforts to spread a specific faith globally often encounter complex societal layers that can strongly oppose externally introduced beliefs or value systems. Additionally, the historical context and colonization pasts of regions add to the reluctance of some societies to accept foreign religious intervention. Furthermore, with globalization revealing the extent of pluralism, the concept of a single truth or path becomes harder to propagate and, in essence, repels a homogenized religious worldview. There are also linguistic barriers that make it challenging for evangelistic messages to be adequately conveyed and understood in different languages.
On the other side, globalization also provides pathways through which communities around the world can interact more directly with each other, enabling interfaith dialogues and exchanges. However, the dynamic of globalization has not necessarily translated into economic freedom for the majority of the world's population, raising questions about how such trends affect global evangelism endeavors. Whether or not a global government or authority could facilitate a coherent plan for global evangelism acceptance is speculative and would involve significant political and ideological shifts globally. The sovereignty of nations and the value they place on religious independence are significant barriers to such a proposal.