Well it's literally a definition thing. You can argue that they aren't true believers or something asking those lines but Catholicism is literally, by definition, a Christian faith.
In Minnesota they had a Somalian candidate for mayor who lost because of tribalism within the Somali community. Somalians from different tribes would not vote for him. So then some of the Somali leaders came together and said we are all Somali and should be voting together or we will not take power from the white people. More tribalism.
Leftist is a relative position, so what it means changes depending on what it's compared to. There is always a left and a right as long as there is a meaningful distinction between the two.
Everyone (pretty much) agrees that fascism is bad, but Antifa is a movement that means more than anti fascism. Antifa is branding or marketing in the same way that the anti defamation league is, or like the patriot act put a certain spin on a bill that stripped privacy rights from citizens. Groups use branding to gain power and aren't all encompassing as to their motives or actions. In the case of antifa it's less of an actual organization and more of a rallying cry that gets used for a wide variety of people with different motives, and it's detractors point to a wide variety of actions or intents (real or imagined) when criticizing it.
Being pro free speech has nothing to do with willingness to change your opinion. Rhetoric and philosophy are both contained within the free speech bubble. Also there are no ideologies that are free from the potential of stifling others free speech, which is why it needs to be vigorously protected by everyone, all the time.
Interesting. I've never heard that the Americans lost the war of 1812, but apparently that's how it's taught in Canada.