that is an English proverb- this
Should people act- follow
to be disallowed- excluded??
to “Far East“- the Far East, though this term is not so popular nowadays as it is western in its focus, just use the East, East Asia or Asia-Pacific. Also, you're confusing the Middle East and East Asia.
should act their habits- follow/respect? maybe use customs instead of habits
not only in there- delete 'in'
to them to “unczech“- too 'un-Czech'