Umar Ibnul-Khattaab had said: “Soon the bonds of Islam will be loosened bit by bit, because people will enter into Islam but will be unaware of Jaahiliyyah (ignorant practices that Islam opposes),” meaning that they won’t hesitate to follow them

[Ibn Taymiyyah – Majmoo’ul-Fataawaa (10/301)].

And when you talk about this, they say don't judge me or call you the extremist.

People will enter into the fold of islam but majority wouldn't have the full understanding of the deen.

The prophet (S.A.W.S.) said regarding our responsibility to learn Islamic knowledge that he brought for mankind:

“The example of guidance and knowledge with which Allah has sent me is like abundant rain falling on the earth, some of which was fertile soil that absorbed rain

water and brought forth vegetation and grass in abundance. (And) another portion of it was hard and held the rain water and Allah benefited the people with it and they utilized it for drinking, making their animals drink from it and for irrigation of the land for cultivation.

(And) a portion of it was barren which could neither hold the water nor bring forth vegetation (then that land gave no benefits). The first is the example of the person who comprehends Allahs religion and gets benefit (from the knowledge) which Allah has revealed through

me (the Prophet) and learns and then teaches others. The last example is that of a person who does not care for it and does not take Allah’s guidance revealed through me (He is like that barren land.)“ [Bukhari, Vol. 1, Book 1, Hadeeth 79].

Unfortunately, it’s not uncommon to see Muslims today who fall in the last category and make little effort to learn such knowledge.

Ibn Al-Qayyim comments about the two verses of Suah Al-Hashr (16, 17) where an ignorant worshipper based his life on worshipping Allah unknowingly, so Satan seized the opportunity and thus seduced him (due to lack of his knowledge) to disbelieve in Allah [Al Fawwaid].

So, we see that an ongoing effort to strengthen our faith through knowledge is essential not just to protect us from minor sins but also to prevent us from the greatest sin of all, which is to disbelieve in Allah.

The prophet (S.A.W.S.) warned us about keeping company that can

take us away from the straight path. He (S.A.W.S.) said: “A man will follow the way of his close friends, so let each one of you look at who he takes as a close friend.” (Narrated by Abu Dawood, 8433; classed as hasan by al-Albaani in Saheeh Abi Dawood, 4046.)

“Friends on that Day (the Day of Judgement) will be enemies except al–Muttaqoon (the pious)” (Az–Zukhruf 43: 67).

“And (remember) the Day when the wrongdoer will bite at his hands, he will say: O! Would that I had taken a path with the Messenger (Muhammad). Ah! Woe to me!

Would that I had never taken so–and–so as a friend. He indeed led me astray from the reminder (the Quran) after it had come to me. And Satan is ever a deserter to man in the hour of need” (Al–Furqaan 25: 27–29).