In the Name of Allah, The Most Gracious, Ever Merciful.
Love for All, Hatred for None.
Just as a tree needs clean water so also it needs manure. There is none who did not have people to oppose him. A lot of divine action is based on the mischief of the opponents. It is good for a prophet to have some opponents, for, they make him pray the more and more of the mistakes are shown to the world. This is also good for his followers, for, it gives them strength of faith.
As for God the Almighty, it does not take time for Him to bring millions of people to naught but he lets the opponents exist as a matter of necessity. Wherever there is silence (no opposition) the Jamaat there does not make progress. It is not easy for every body to understand the expedient ways of God.