Why do we have to learn English?

Why do we have to learn English? Have you ever thought of it? The widespread of English language is, I think, the consequence of imperialism. The man who make every effort for improving English which is mere his second language or just a tool is fool, even a slave of Anglo-Saxson Empire. But...if you hesitate to use English, you will never win for tha game of globalization, that is, the rat race in global capitalism. Tell the truth, it is I...who have the strongest longing to be like English man in the world...this is my fatal contradiction.