Complex sentence: Originalists do not necessarily oppose protection of the rights heretofore protected using substantive due process, and instead most originalists believe that such rights should be identified and protected legislatively, or via further constitutional amendments, or via other existing provisions of the Constitution.
Split into simpler sentences: Originalists do not necessarily oppose protection of the rights heretofore protected using substantive due process. Most originalists believe that such rights should be identified and protected legislatively, or via further constitutional amendments, or via other existing provisions of the Constitution.