Who is right?

'Who is right?' is the wrong question to ask, the reason being that everyone is right.

According to people's background, their beliefs, their world view or framework (paradigm?), the stories they tell to explain the way they see things is absolutely correct, because it will be self-consistent. It, or they, makes sense. And so, in that sense everyone is absolutely correct with respect to the views that they hold.

Of course, that isn't much help if you want to sift through other philosophies to incorporate, or even just mull over, aspects of their thinking. You want want a means of being more discerning.

In that case, a far better thing to examine is not the set of thoughts that people have, but what principles or foundation stones they hold to be self-evident. Based upon that knowledge you have a much better rationale or stratagem for weighing up what they have to say.