The hijab (etc) is immodest

[Leonardo17]

By official, I mean the view of many people who believe in religious tolerance and also believe on the principle of laicity (at least those that I know of).

Laicity is in stark opposition to Islam. I think you already know that.

What would you thing about me if I had a 7 or 10 year old daughter and I told her that pious women must be dressed like this, or else, she is a slut (whatever that means in our times). Does that make me a narrow minded person or not? It’s as simple as that.

A young girl, like any child, is greatly influenced by whatever her parents say, so if they encourage her to wear suggestive clothing, chances are she'll continue to do so later in life, not complicated to understand.

In today’s world, I will have to ask you for a quotation from your Salih Abi, 

From Jaabir ibn ‘Abd-Allaah: “The Messenger of Allaah (peace and blessings of Allaah be upon him) said: ‘If one of you proposes marriage to a woman, if he can look at her to see that which will encourage him to go ahead and marry her, then let him do so.’ I proposed marriage to a young woman, and I used to hide where I could see her, until I saw that which encouraged me to go ahead and marry her, so I did so.’”  (Saheeh Abi Dawood, no. 1832, 1834)

1) That is not correct.

2) There is no suggestive clothing anymore. Any way of dressing that remains "normal" has to be enough. Otherwise does a boy child or a grown up man need to be taught not to wear suggestive clothing for fear of inducing sin in the mind of his female viewer or in the mind of people who are attracted to the same sex?

- I think these ideas should be left where they belong: In the middle ages

3) Well. I mostly focus on the book itself. What you are referring to here is “hadith” that is, the teachings that were supposedly given by the prophet while he was alive. But the prophet had forbidden that any of his non-formal teachings other than the Kuran would be written down. So it remained as an oral tradition for 200 years after the death of the prophet.
Today there are even Hadith’s (words that are attributed to the Prophet Muhammad) that are being used by people who are willing to sell a certain type of product in their stores.
Academically speaking, it is a monumental task to determine which hadith is true and which hadith has been invented by later scholars. So I stood out of it. I mostly focused on the Kuran itself (like the prophet himself wanted future generations to do) and reached some conclusions from that perspective.
So my view is less traditional, more rational and more rationally debatable if you like. I don’t have the necessary knowledge to debate the hadith and even if I had, the hadith has been an oral / unwritten tradition for 200 years, unlike the Kuran that remained completely unchanged for more than 1400 years.