Well he happens to be right about what he just quoted.
I responded to him the following
you are being migaleh ponim batorah shelo kihalacha. This halacha does not exist. You would be a murderer and with eidim and hasro'o bais din would give you the death penalty.
There is no din of kanoim pogim for this. Find a source for your am ha'aratzus. You are also being migale ponim shelo kihalacha. The gemora in Sanhedrin considers that worse than an apikores.
I figured you'd answer that. That's due to matters of technicality (from a passuk that says we should try to save him) and does not reflect at all on the fact that these are sins which are punishable by death.
Wrong again. That is because there is a mitzvah upon beis din called vihitzilu hoedo that even when there are eidim and hasro'o they should actively search for technicalities to get him off the hook.It is amazing how you feel that you are sticking up for the torah when you are going against it