Maybe you're much tougher than me, but I find a mob of armed men more intimidating than an unarmed mob, yes (especially if there have already been acts of violence). Generally, brandishing weapons is considered an escalation of force already. And let's be honest, if there were mobs of armed muslims protesting, there would be a massive outrage.
BTW, these seem to be the kind of people who are opposed to any gun measures and profess to love the constitution, especially the second amendment. Maybe they should look up the bit about freedom of religion, I'm pretty sure it's in there too.