If you and your wife have known too many creepy public school teachers and not reported the matter, that is a dereliction of duty.
There's an important difference between "creepy" and "criminal." "Creepy" means something giving a parent concern regarding the safety of their child. Criminal means evidence is present supporting law enforcement action. Some things that we have found "creepy" among public school teachers that probably did not warrant law enforcement attention:
1. Teachers possessing pornography on their personal phones and computers.
2. Teachers discussing their sex lives and STD experiences in the classroom.
3. Teachers allowing students to have sex at school.
4. Teachers promoting illegal drug use on their personal social media.
5. Teachers introducing literature in school with descriptions of sex and sexuality we believe was age-inappropriate. (Such as Allen Ginsberg's Howl in elementary school.)
6. Teachers repeatedly leering and staring at students' sexual body parts.
Many of these things will be considered creepy by lots of parents as relating to the safety of their children in school, and it is an important aspect of parental freedom to base educational choices on the things they consider important. However, to my knowledge, in most states, there is no legal duty for a parent to report concerns based on the above issues, especially if the parent has only heard of these things through their children and is not an eyewitness themselves. My wife and I did report several of the above issues to the appropriate authorities. No legal action was ever taken. In other cases, we consulted attorneys regarding whether we had a duty to report and whether any legal action could be expected to be taken based on our report. Our legal counsel told us we neither had a duty to report, nor could we expect any action to be taken if we did report.
Your "principals" do not list one actual credible fact. Most likely, you and your friends make up these anecdotes and amplify them in order to demean public schools.
Consider point 3.
3. The other children are often more likely sources of evil than the adults in charge.
Look up some studies on sexting. A large percentage of high school males in public schools are in possession of child pornography on their cell phones. Many are often actively soliciting female students to make and send them child pornography.
Also, you would do well to look up some studies on drugs and bullying in public high schools. Who is bullying other students and bringing the illegal drugs into the schools? It isn't the teachers, it's the other students.