I want to say the anti American sentiment but also Kaiserslautern is the 2nd stop in Germany from France (first being Saarbrücken). So there may be anti immigration influence.
Additionally Kaiserslautern has lost a ton of manufacturing capabilities with the withdraw of Pfaff and Opel in the area may have caused many loss of jobs and general upset of the population.
I want to say the anti American sentiment but also Kaiserslautern is the 2nd stop in Germany from France (first being Saarbrücken). So there may be anti immigration influence.
Additionally Kaiserslautern has lost a ton of manufacturing capabilities with the withdraw of Pfaff and Opel in the area may have caused many loss of jobs and general upset of the population.