Does Religion Cause More World Problems?

None provoking the people to idolatry ought to be exempted from the punishment of death.... The same ought to be done wheresoever Christ Jesus and His Evangel is so received... that the magistrates and people have solemnly avowed and promised to defend the same; as under King Edward of late days was done in England. In such place, I say, it is not only lawful to punish to the death such as labor to subvert the true religion, but the magistrates and people are bound to do so unless they will provoke the wrath of God against themselves.... I fear not to affirm that it had been the duty of the nobility, judges, rulers, and people of England not only to have resisted and againstanded Mary, that Jezebel whom they call their queen, but also to have punished her to the death, with all the sort of her idolatrous priests, together with all such as should have assisted her what time that she and they openly began to suppress Christ's Evangel, to shed the blood of the saints of God and to erect that most devilish idolatry, the papistical abominations and his usurped tyranny, which once most justly by common oath was banished from that realm.

Common sense and natural reason are highly offended that God by his mere will deserts, hardens, and damns, as if He delighted in sin and in such eternal torments, He Who is said to be of such mercy and goodness. Such a concept seems wicked, cruel, and intolerable, and by it many men have been revolted in all ages. I myself was once offended to the very depth of the abyss of desperation, so that I wished that I had never been created. There is no use trying to get away from this by ingenious distinctions. Natural reason, however much it is offended, must admit the consequences of the omniscience and omnipotence of God....If it is difficult to believe in God's mercy and goodness when he damns those who do not deserve it, we must recall that if God's justice could be recognized as just by human comprehension, it would not be divine.

Well, like all other things, religion brought about its fair share of benefits as well as its fair share of damage.

And though the abolitionist movement also involved religion, the opposite side also used religion to justify their actions, because the Bible didn't really speak out against slavery (of course, slavery was apparently, different during Biblical times to the slavery practised in America).

does religion cause problems?

no - religious intolerance does.

if the uno could ban all attempts of religions conversion/preaching/propagating, whether by force or by tact - then there would be no religious problem ever.