No, but teachers do pose other threats to those who fear them.
First, they are more highly educated than the general population of industrial and clerical workers. This makes them potentially more dangerous.
Second, they are grossly underpaid in relation to the preparation required for their work, and the value it has for society. This makes them angry and more likely to resort to advocacy and activism.
Third, they have above-average representation of minorities in their ranks, which allows them access to other groups and constituencies and a potential to form alliances with with others who share similar goals.
And of course, they have strong unions which invariably fund Democratic candidates.