[Serious Discussion] Religion

[Maddolis]

Indeed, but how?

That would only be possible if we were able to express our thoughts on religion freely and without expecting punishment either from the society or the law.
All we have now is the internet and we have to do that anonymously, so we won't have the same fate as Alber Saber for example.

Otherwise there's going to be 1.5 billion people believing in these archaic beliefs and acting based on them...forever.

I wish I knew how. Common sense, logic and reasoning (which are pretty much synonymous with each other) only tend to work on those with an open mind or those sitting on the fence between theism and atheism, or haven't really thought about it.
Those who reject atheistic principles as soon as they're mentioned have also closed their mind to logic and reasoning. There is no clear solution- however I believe that the more people in strongly Islamic countries that stand up for their beliefs and for science (yes, even at the risk of death), the more people will gain confidence from that and will join them.
When harm comes to these people it causes a stir in the Western world- and I doubt that many of these countries will dabble in the affairs of these Islamic countries, though with more people having the confidence to stand up to the religious oppression, the more people there'll be in the next generation, and the next, and so forth. It's easier in Western countries, but will still likely take another 100+ years.