Perhaps this author should ask, is heresy hereditary is it past down in a testament?
How do Roman Catholics become heretics? Is it our baptism which creates this heresy?
Anyways, how is it that a heresy such as Roman Catholicism can survive and not wither away? Does not the Holy Spirit uphold my Church?
The vivacity of the Roman Catholic Church is a sign that the Holy Spirit is still present in it.
Budhism, Hinduism are non-Christian religions which are older than Christianity itself? Why haven't they withered away?
Islam, which can justifiably be seen as an Arabic adaptation of Nestorian teachings, has not withered away. Why?
Several heresies of the first millenia are still alive in the oriental churches. Why haven't they withered away?
Some, like arianism even "resurrect" now and then.. see the Jehovah Witnesses. Why doesn't it simply stay buried?
Paganism not only did not die but was revived in the Renassaince and many today are still neo-Pagans. Why hasn't it withered away?
The cult of man of some of the old philosophers not only survived the Christian historical period, but is defensably the prevailing ideology in Europe and elsewhere. Why hasn't it withered away?
That something thrives is not proof of truth.