Based on the information you have provided, it would seem that the Pharisees were completely in accord with the ideology which provided the bedrock of traditional Judaism, there being no general disagreement between the beliefs and teachings of the Pharisees with those beliefs which were accepted by the earliest followers of Jesus -- Jewish concepts such as the resurrection of the dead, Judgement Day, Moshiach's arrival and rule over The World to Come, the permanent nature of the human soul, etc.
Yet, the New Testament from beginning to end blasts the Pharisees as being the very incarnation of hypocrisy, corruption, and evil whose teachings and practices had nothing in common with Torah!
The Sadducees get scant mention in the NT, but the Pharisees are denounced from beginning to end!
This leads me to conclude that there are troubling inconsistencies and inaccuracies found in the record book of Jewish history under Roman Occupation as found in the official New Testament canon.
Perhaps these accusations and libels were scripted in much later by Church Fathers with a 'political agenda' who knew nothing of Jews or Jewish history.