The dictionary definition of heresy is, “the holding of an unorthodox religious belief: the holding of, or adherence to, an opinion or belief that contradicts established religious teaching, especially one that is officially condemned by religious authorities”. Based on this, would viewpoints in opposition to the Pre-Trib Rapture be considered heresy?
Although It’s clear to me and most other evangelical scholars that a literal interpretation of the Bible only supports the pre-trib rapture position, there are legitimate scholars who disagree. In other words, we don’t have the kind of universal agreement necessary to make the pre-trib rapture the established position of the Church. Therefore, I don’t think views other than pre-trib should be considered unorthodox or heretical.