Giordinos:
I am no fan of trump but some of your points are not causes for impeachment at all.
Your reasons
1. if new sexual assault charges come forward. President Trump can only be impeached for high crimes and misdemeanours that he commits while he is in office. He would have to commit sexual assault while he is in office for it to be an impeachable offence.
4. showing signs of mental illness is not a cause of impeachment. The constitution only prescribes for impeachment for high crimes and misdemeanours. The founders felt that if the people decide that a president isn't acting rationally then it is the duty of the voters to rectify that situation in the next election and for the people's representatives the Congress to provide checks on the Executive.
5. By absolute law, the President cannot violate the laws on releasing classified information. The President is in charge of classifying documents, he usually delegates that to departments, but it is his absolute right to classify or declassify information as he sees fit. If the President releases information he then declassifies it by the virtue of him releasing the information. It is sort of like an executive order, the Executive creates it so the Executive can break it which would, therefore, nullify the order.