As everybody knows, back in time, meat couldn’t be conserved properly and this led to major diseases affecting people, so that it was highly recommended to let as much as blood out the animals before eating them (since blood attracted bacteria). Now, technology has evolved, we have fridges, we have conservations techniques and we can keep meat and everything else "fresh" for a long time. My Question is: Why hasn't also our religion evolved like everything else had? Why are we always attached to rules that at this time wont have any bad effect on us. Isn't everything that is made haram in the quu'ran made by the purpose of avoid it since it's bad for us. How can eating meat that is healthy and clean bad for us in anyway?
I'm sorry I can't give you an honest answer, most of what I'll say will be my personal (non-religious) opinion.
Why hasn't also our religion evolved like everything else had?
I think many factors come into this. The major one would be, if Allah really does exist and did send Islam, then how can a being with finite wisdom know more than a Being with infinite wisdom. If we change the law and we are wrong, that is to say we are worse off, then we will be punished for it. So I think fear of God and uncertainty of being right comes into play.
As many Muslims believe Islam is perfect, and therefore nothing should be added or taken away, evolution of the religion through enlightenment or otherwise goes against the idea Islam is perfect.
But I think other factors may also come into play. For example, trying to evolve religion may get you killed or harassed. A London Imam had received death threats for his view on the Theory of Evolution and women's rights to refuse the veil. This is nothing compared to trying to change religion, how bad do you think that would be?
To be honest, as much as I want to change parts of Islam (such as slavery) I'm not religious, nor do I know much about my religion, so I don't think I qualify as being in a good position to suggest evolution of religion is good. Which may be the excuse for many who would like to see change.
That said, I do agree with many parts of Islam (at least of what our beloved Prophet followed) that will still hold true for today. Since I agree with most of the religion, should I seek to change the parts I feel are wrong?
Apologies for not truly answering your question. I would have preferred to comment but my reputation doesn't allow it.
Not everything that is haram is bad for us. IMO religion is faith based, we are suppose to follow what Allah has ordained for us Halal and what was ordained haram without asking the reason why or changing such laws if those reasons don't deem necessary.
For example, take pork. Now a days, pork can be easily correctly slaughtered and cooked to healthy perfection, does that mean it is not haram anymore? The same goes for meat that was slaughtered by people of the none Abrahamic religion, does it mean we can eat their meat?
The same goes for wine, there are many studies which show the complete opposite, that drinking a little amount of certain wines are good for your body.
Personally, I think the reasoning behind this is that the bad outweighs the good.
Take drinking as an example. If taking in moderation it good be good for you, but ultimately that is not the case and more bad happens from it. The same goes for pork, yes in modern countries it is clean but in the Majority of the world (3rd world countries) it is still a dilemma. We also see that pork causes the spread of many disease like the swine flu.