Islam has always grown through conquest, never through peaceful conversion or persuasion. Furthermore, there is nothing in Islam that allows for religious freedom, because Islam rejects the use of reason. If you can't depend on reason, then what's the point of having the freedom to use it? After all, it will only mislead you. In Islam, you're expected to submit to God (as he is presented to you by Islam), no matter what your reason or logic tells you.
That theological point has real-world consequences: The God of Islam will do what he will do, when he wants to do it, and there's no telling what that might be. God might make the sun rise tomorrow... Or he may not. He may upend the laws of gravity, or he might maintain them. We don't know, it's all up to Allah. That means we don't live in a stable natural world, and science is therefore impossible. That's the reason the Islamic world has fallen so far behind in technology, science, and medicine -- because they've rejected its very foundation. That's also why democracy is ultimately incompatible with the religion: If you can't depend on reason, how could you successfully choose a leader? Instead, a leader will be chosen for you by whatever Islamic authority has jurisdiction.
Contrast that with the attitudes of both Christianity and Judaism throughout history. While both have had (sometimes serious) conflicts -- and have carried out periods of religious suppression -- they both share a devotion to God-given human reason. Think of what that makes possible: People can be persuaded through argument, and not violence. Might no longer makes right. When Christians and Jews have violated this in the past, it is because they have acted contrary to the foundations of their religions, not because of it.
This devotion to reason also creates room for religious freedom. If we can use reason as a guide, then truth -- if presented fairly -- will be more compelling than error. We don't need to impose our religion through force (as is the case with Islam), but can simply create a free society where people can make their own decisions about faith and government. They'll sometimes be wrong, but when they are, it's because they neglected some aspect of their reason.
Islam is entirely different. They rejected philosophy in the 11th century, and have been in a cultural free fall ever since. Muslims are fine with religious freedom when they're in the minority in a country, because it gives them room to grow. But once they become the majority, they transform the nation into something else entirely, because a liberal democracy run by human reason is an offense (and an impossibility) to the Muslim Mind. Islam doesn't thrive in a liberal democracy; it merely bides its time.
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