I agree that a few are lazy, and a very few have an “unhealthy fixation on kids”, however, most just love children in a healthy way. Is that a crime?
In my experience, most teachers are indifferent to children and see them the way post office workers see customers: a necessary inconvenience standing between them and their paycheck.
Yes, they are plenty of dedicated, wonderful teachers out there. You can spot them because they stand out in such contrast to most of their coworkers.