The Believer and the Disbeliever are not equal

Allah says that these antonyms are clearly not equal, the blind and the seeing are not equal, there is a difference and a huge gap between them. Darkness and light are not equal, neither are shade and the sun's heat. By the same token, the living and the dead are not equal. This is the parable Allah makes of the believers who are the living, and the disbelievers who are the dead. This is like the Ayat:

أَوَمَن كَانَ مَيْتًا فَأَحْيَيْنَـهُ وَجَعَلْنَا لَهُ نُورًا يَمْشِي بِهِ فِى النَّاسِ كَمَن مَّثَلُهُ فِي الظُّلُمَـتِ لَيْسَ بِخَارِجٍ مِّنْهَا كَذَلِكَ

Commentary

Verse 18: وَلَا تَزِرُ‌ وَازِرَ‌ةٌ وِزْرَ‌ أُخْرَ‌ىٰ (And no bearer will bear the burden of any other person) means that, on the Day of Judgment, no one will be able to bear the burden of another person's sins. Everyone will have to bear his or her burden. As for what appears in Surah Al-` Ankabut (29:13): وَأَثْقَالًا مَّعَ أَثْقَالِهِمْ , which means that people who make others go astray will not only bear the burden of going astray personally, but will also bear the burden of having made others go astray. it does not mean that they will somehow lighten the burden of those they had caused to go astray. Instead, their burden will weigh on them as it was in its own place and because of the crime of those who made people go astray, being twofold, their burden too will become twofold, one: that of being astray and two: that of making others go astray. Therefore, there is no contradiction in these two verses. (Ruh-ul-Ma’ ani)