Abrahamic religion is, in my opinion, slowly dying off because the extreme, unfiltered ideals are refusing to integrate and progress as society as whole has deemed fit.
It's not a big deal. What we, who are worried about religion's effects on politcs, MUST ABSOLUTELY NOT DO is try to suppress it. The "counter-culture" Christians use it nowadays, citing Hollywood and the public educational system as decadent cesspools of anti-religion, and the Muslims struck back with a bloody furor after the Shah cracked down on traditional Islam.
People who oppose the Church and State union ideal shouldn't allow the religious groups an opportunity to victimize themselves. We let them through, and the wackos will be laughed off stage, while the moderates will even everything out and keep the rest happy.
Look at the Iranian government after the Shah's exile and the Ayatollah's return for an example. Because of the suppression of conservative Muslim beliefs during Pahlavi's rule, everyone supported the most radical members and the most radical policies, and the first two presidents, who were moderates, tried constantly to maintain a society centered around rationale and balance. But the people voted for a theocracy, because the politicians were able to attain a stigma of the oppressed, and use it to their full benefit to further agendas as radical Islamists.
My opinion is this: there is nothing inherently wrong with religion; let's be honest here, we can't can't prove the non-existence of God any better than we an prove the existence of God, but politics is a dirty business, and religion has no place in it in terms of making decisions and guiding the state by a singular doctrine. I'm confident that we are inching towards a much more tolerable society in the regard to people, who were once second-class citizens, or even people unworthy to live, are now being accepted (or tolerated), and science is much more prevalent today and has made phenomenal progress as it stands. What remains is that we let extremism stagnate and distill on it own terms. If they isolate themselves from the rationality that defines modern civilization, they will cease to be relevant.
So sit back, and relax. I'm in no hurry.