What do Muslims think of non-Muslims?

As salamu alaikum wa rahmatullah. Would you kindly explain to me how the religious Muslims think that people other than them are apostates or infidels? I'm a Muslim, but I find this rather rude and unpleasing. If Muslims were given some kind of ability to shift perspective with them, I doubt the Muslims would want to learn to understand their viewpoints. This is something that I cannot fathom.

Alaikumassalam wa rahmatullah wa barakatuh,

Please see the articles on the page Non-Muslims in Islam where I answer your questions in detail. If you have further questions please feel free to submit a new one.