This is specifically in the context of programming work done outside of the work for the company. These onerous clauses attempt to lay claim to that work. For example, if a I work at Widgetron writing Widget APIs this clause might be used by Widgetron to lay claim to, say, a game engine I’m writing at home during the evening.

I see a problem with it, Think of this scenario I work as a programmer writing a boring LOB application, in may spare time I write sci-fi fiction stories

the company falls on hard times, cuts my pay but I happen to submit one of my books to a publisher, it becomes a HUGE success and now the company claims to own the right to that book (the money they need to save the company) because they own everything that comes from my mind under these unethical and immoral provisions

That is easily avoided by having them sign off on the code they commit to the employer's repository. Giving the employer full rights over every single thing the employee creates just to solve such a simple problem is ridiculous.

Then say "the employee grants employer a non-exclusive (exclusive if the work is directly related to the company business as of time the work is conceived), non-transferable, sub-licenseable licence to use, modify, resell or redistribute all works related to employment (even if tangentially), including modified versions thereof, for commercial and business purposes only", not "intellectual property of anything and everything done by employee relating to employer's business, regardless of whether it relates to employee's work, belongs to the employer".