To the great relief of thoughtful citizens of Fairfax City, there's an excellent opportunity tomorrow to vote out the isolationist mayor and City Council majority that have been systematically cutting the city's ties with the outer world. The worst of the insular moves, and the one that seems to be generating the most voter concern, is the majority leadership's scheme to scrap the present public school system being run by Fairfax County in favor of some sort of separate local system.

The school plan is only the latest and worst in series of provincial policy decisions to make the city go it alone in providing local services - no matter how inferior those services might be. It's all done in the name of economy, with some fiscal gimmickry to suggest "savings." Fortunately, surveys indicate that responsible voters are especially disturbed by the school-wrecking plan being pushed by Mayor Nathaniel F. Young and his followers on the City Council. That concern has led to the formation of a parent-teacher organization for residents who want the City Council to negotiate with the county to continue the school system.

The organization - Citizens for Continued Quality Education - is calling for the election of candidates "willing to solve our problems through cooperation with surrounding jurisdiction." It has endorsed an informal slate of candidates for mayor and City Council. The candidates: For mayor, Frederick W. Silverthorne; for the six City Council seats, Carl J. Hemmer, Susanne W. Max, John P. Perrin, William T. Scott, Glenn L. White and Lee H. Wigren. Their pledge to end isolationism deserves the support of all residents who care about the future of the schools and other essential services in Fairfax City.