I'd suppose then hate is the enemy.
In fact, when Mohammad (s) showed miracles, the disbelievers accused him of being a sorcerer as opposed to getting his power from God, but Quran didn't say they have to believe to be forgiven, it says all they have to do is stop their opposition (hate fighting believers and just live side by side in peace).
If people don't seek to put out God's light nor hate it, they aren't counted as "kaffers".
The people of hell all will say "what is a matter with us that we don't see men who we use to count as the worse?" and the followers of Ahlulbayt (a), if they are not hated, and then all those people who didn't hate them and didn't count them as the worse, won't be people of hell.
2 highest gates of heaven are meant for followers of Ahlulbayt (a) of their time, and rest of humanity who didn't hate the light or it's followers, will enter through 5 other gates. The people of hell, all they had to do was side with the oppressed, hate oppressors, and care for the poor, and they would be counted among right hand people, but they side with oppressors or were apathetic, and hate the truth of it's followers because of the duty they called to and abandoning of the love of the transient world and restricting sexual low desires.
They want to make you hate the followers of Ahlulbayt (a), and they are doing good job politically of branding the vanguards of the earth and soldiers of God's anointed King, as terrorists. Whoever hates any of Ahlulbayt (A) followers won't be forgiven.