What are some reasons that prove that John Proctor is to blame for the crisis in Salem in The Crucible by Arthur Miller?

The
primary reason why one could blame John Proctor for the crisis regarding the Salem witch trials
concerns his refusal to expose Abigail Williams as a liar after speaking to her in act 1. In act
1, John visits Reverend Parris's home to inquire about Betty's mysterious illness and speaks to
Abigail in private. Abigail informs John that they were simply dancing in the woods and were not
engaged in witchcraft. Instead of informing officials of the court about Abigail's confession,
John keeps the information to himself and does not get involved.

In act 2,
Elizabeth informs John that the court has arrested fourteen people and sent a mighty judge from
Boston to preside over the hearings. She also tells John that everyone views Abigail as a saint
and she wields her power mercilessly on the witness stand. John tries to dismiss Elizabeth's
information, but she encourages him to expose Abigail as a fraud. However, John recognizes that
he was alone when Abigail told him the sensitive information...