Michael Servetus was burnt at the stake in Calvin's Geneva in 1553

What seems really relevant is that the evidence shows that there has never been "The Christianity" where one interpretation of what Christianity means was universal. Any consistency in interpreting what Christianity is only came about based on politics of State Dictate and changed with each power struggle.

Most Christians are unaware of just how much of the basic dogma and even resources are definitely political in nature. The Book of Common Prayer was one recent (relatively recent) example that was created to control and mandate uniformity within the State Religion (Church of England) and replace the existing RCC Missal of the time and the Authorized (that often gets left out) King James Version of the Bible was yet a more recent example, a purely political document from James I & VI meant to provide support for the concept of Divine Right of Kings and to tone down the anti-Roman Catholic/anti-Papist rhetoric of the period and to heal the division between the COE and the Roman Catholic Church.

It has whatever value humans give it. Do the Gettysburg Address or US Constitution or Magna Carta or Authorized King James Version of the Bible have any value? LOLSorry but you have never made any argument related to those issues.