The gospel is not and cannot be synonymous with any particular political ideology.
If we reduce the gospel to a mere list of good ideas, then we become dogmatic fools, living with our heads in the clouds of idealism. A list of rules will never hold real power and no hope of lasting joy and will only divide.
When we realize that the gospel is a proclamation of good news, then we become heralds who interact face-to-face with those to whom the message relates. The gospel UNITES us in our humanity because the good news is for all humankind.
Political ideologies will perish, but the good news, which is the Gospel, is an infinite gift for all.