Most parents don't raise their children by being aggressive towards them. Islam doesn't come off as peaceful . In fact it seems to make its majority of adherents angry and controlling. A service to self type.
people base their political views off of their core belief system. Usually they are born into their belief system and thoroughly and systematically indoctrinated.
Even in your labeled peace(islam) your shiites and sunnis are infighting for dominance/control. Where is the love? Where is the peace? Where is the neighborly connection.
Sunnis and Shias marrying was a normal thing. This hate has been artificially created through colonialism in a way that is very unnatural.
Part of it was when Wahabi movement went around killing Sufis by a wicked interpretation of (1) that talking or seeking intercession by talking to dead saints constitutes Shirk (2) but the big problem, is not 1, but that you should kill them for their polytheism.
Sufi Sunnis believed in 12 Imams (a) in their own way, they integrated the belief in Ahlulbayt (a) and respected at the same time Abu Bakr, Umar and Uthman. This is seen in books elaborating the spiritual succession or leadership or rulership and contrasting to the government or outward or worldly Caliphate.
They emphasized the 12 Imams (a) had the Pole and Power of Mohammad (s) in guiding souls.
Gog and Magog know, that in time, they can't cause a big rift between majority of Muslims (Sunni sufis at that time) and Shias.
So people were slaughtered and also through political pressure and hostility and propaganda and education systems under people who don't have this view, and speak against Tawasul as Shirk, etc, and mass money in propaganda changed the demographics a lot.
Sufi majority countries no longer had Sufism. And even now the Sufis that remain, don't usually emphasize on the 12 Successors and don't emphasize on unique position of Poles they had.
Instead they make their own Tariq leaders into the successors of Mohammad (s) when Rumi for example has a poem about Twelve Imams and put them in a unique higher position and doesn't see himself as a Successor to Mohammad (s) spiritually like them. No way.
Sufism is even losing it's original essence in emphasizing on Ali (a) the way they use to. Some of it remains, but it's not the same.
But aside from this, we still had relatively good unity, even with the propaganda against Sufism in general.
When Obama hired, trained and weaponized tons of people to go fight Assad, and those people promised to fight Hezbollah, no rational person can think of them as moderates?
Why would moderates want to fight Hezbollah?
Please. And alliance between Al-Nusra to Al-Qaeeda eventually lead most weapons going to ISIS and I don't believe for one moment this was not meant to happen in the calculations of Obama. He is smart enough.
And when we stopped them, you kill the man who stopped them primarily, a hero.
And what do Shias want for Sunnis? We want them to govern their countries not be ruled by dictators and US puppets.
This has been the stance of Iran. But Obama didn't want this. He wanted ISIS. And he wanted to create hate towards Iran by saying see they support a dictator while we trying to give you rule.
And we all know if Putin didn't get involved Shiites in Syria all be slaughtered and Hezbollah would have their hands full with Obama trained rebels.
We want Sunnis yes to rule themselves, but this is different then US training people, providing an unjust interpretation of Islam, Quran, and promoting hatred towards Shiites as these rebels promised to fight Hezbollah and giving them government.
Sunnis who fall to such slogans I feel bad for them.
You guys are trying to create a big rift and seeds of evil planted in the past, and its growing now.
Colonialism strategy is that they don't want us united. This is reality.
Inshallah, Muslims do unite, overthrow dictators, and don't fall pray to Satanic plans in the region. Time will tell what happens.