Hello
I want to say, that I have memorized in Arabic the entire suratal Baqarah. It talks about many things. Talks about in the first few pages about wherein this book is truth and contains no doubt. Talks about those who believe in it and how they will be successful. Talks about those who have been warned and turned away (and Allah knows already who will believe or not) no matter if you warn them or not they will not believe --and in saying that, in Islam gives them the choice. So it isn't Allah misleading them and since he already knows who will believe or not, he puts a seal on their hearts (from their own making and Allah says they deceive themselves). Talks about how he created punishments for them. Which is perfectly normal for one who goes against God. Talks about those who cause corruption on earth and they claim they are coming in the name of peace. (sound familiar?) Talks about the hypocrites, talks about provisions Allah has sent, talks about how he gave adam the names of all things, etc. etc. etc....so when you say, what you read it was a shock to you...maybe you could reread it now and understand that what I am saying is a better enlightenment into the understanding of the first few things you read. Remember, when it talks about the unbelievers and hellfire they will face, remember it is not Allah that is just choosing, it is the choice for those who he already knows who will believe or not.
In the Quran, it says the beginning of the Quran,
ذَٰلِكَ ٱلْكِتَـٰبُ لَا رَيْبَ ۛ فِيهِ ۛ هُدًۭى لِّلْمُتَّقِينَ
ٱلَّذِينَ يُؤْمِنُونَ بِٱلْغَيْبِ وَيُقِيمُونَ ٱلصَّلَوٰةَ وَمِمَّا رَزَقْنَـٰهُمْ يُنفِقُونَ
وَٱلَّذِينَ يُؤْمِنُونَ بِمَآ أُنزِلَ إِلَيْكَ وَمَآ أُنزِلَ مِن قَبْلِكَ وَبِٱلْـَٔاخِرَةِ هُمْ يُوقِنُونَ
أُو۟لَـٰٓئِكَ عَلَىٰ هُدًۭى مِّن رَّبِّهِمْ ۖ وَأُو۟لَـٰٓئِكَ هُمُ ٱلْمُفْلِحُونَ
This is the Book about which there is no doubt, a guidance for those conscious of Allah
Who believe in the unseen, establish prayer, and spend out of what We have provided for them,
And who believe in what has been revealed to you, [O Muhammad], and what was revealed before you, and of the Hereafter they are certain [in faith].
Those are upon
guidance from their Lord, and it is those who are the successful.