I think it's easy to give correct arguments, it's just easy for you to dismiss them.

For example if i say "we're not on the back of a giant turtle, because humans went into a rock ship, went all around the planet and checked there's no turtle", is absolutely correct. But then you'll say something like "how do you know, were you yourself in the rocket ship?".

And this is how normal people see extremists: "I just addressed your point, but you choose to hold a ridiculous position"