Jesus said "My Kindom is not of this world" Christianity is paramount. Patriotism is fine. DO NOT GET THE TWO CROSSED UP. Suddenly people are conflating the two. Often by "kingdom now theology", a heresy leading people away from salvation. like Q diverting people who are waking up by adding lies. These people do not understand the Gospel, and so, are very unlikely to be true Christians. How can one accept a Gospel they don't know? Many think it means truth or scripture. It's far more specific.
Not sure I understand part of your comment. The basis of The Gospel is truth and Scripture - in The Word ,
The manifestation of The Gospel is love - pure love - for Elohim, and for our neighbors ...... as stated in Scripture .....