I guess I don't know what you mean exactly. You said,

" However, and especially in recent times, I've noticed that not just one but on many political-orientated threads, it seems that no other political views exist apart from that of America's"

Believe me there is no such thing as" one American belief". Our beliefs
about politics or anything else, is very different from each other. If you are
talking about some American political situation, of course you will hear more
American thoughts & beliefs. Is this what you mean?