Clirus won't take too kindly to that. She* believes that capital punishment is not only authorised by Scripture, but necessary to eliminate the 'bad apple' before it causes the whole barrel to become infected and rot (her own words). For her, the death penalty is simply a means of eliminating 'evil' people, and thereby sparing 'good' people from infection.
Problems with that attitude become apparent immediately.
First, Clirus assumes that human beings, whose judgment is often impaired by error or deceived by mere appearances, can accurately assess the totality of a person, examining his innermost character, to determine whether he is in fact good or evil. I propose that human beings have no means to make such measurements on the soul, and that therefore we cannot judge precisely whether a whole person is good or evil; we can at best speculate. And speculation is not a sound basis for executing anyone (at least not in any respectable legal system).
Second, Clirus' analogy of the rotting apple causing the whole barrel to degenerate is a bit strained. She has, in the past, remarked that she is frightened by the prospect of 'becoming a monster by being eaten by the monster.' Both remarks seem to suggest that the individual is powerless against moral 'infection' from an 'evil' person. That if there is one evil-doer then those in his proximity shall become infected also and become evil-doers' themselves, spreading evil like a disease throughout society much like a rotting apple spreads mould spores to healthy fruit. This assumes that individuals are passive, and that the presence of evil alone suffices to make people in its proximity evil. On the contrary, the subject has a choice. In the presence of evil it is not necessarily true that that a person, even a good person, will himself become evil. If he does then it is because he has chosen that path and not because he was somehow the passive victim of infection. Likewise with the monster metaphor Clirus uses: you can't become a monster by being eaten by a monster. You can only become a monster by choosing to imitate a monster. Perhaps then the reverse is also true: you can only become Christ-like (or fully Christian) by imitating Christ.
* Though we are not entirely certain of her sex, some of her past posts have implied a female identity.
That is a pretty good summary, except the death penalty is an Old Testament concept associated with society. The New Testament deals with this concept of purity as a Christian removing sin from themselves, but the concept of society removing evil/sin still remains. And, yes, I believe a Christian needs to be very careful about who they associate with and who they listen to.
I believe the Bible teaches all things should be dealt with by the following three levels of action;
1) If it is good - accept it and nourish it.
2) If it is evil - rebuke it but tolerate it.
3) If it threatens your existence - destroy it before it destroys you. This is self defense, which both the individual and society have a right and responsibility to do.
The first two are from the New Testament of the Bible and represent the Law of Love. The third is from the Old Testament of the Bible and represents the Law of Purity/Self Defense. The New Testament deals more with personal responsibility and the Old Testament deals more with the preservation of society. The Old Testament and the New Testament together present God's Law, a means of survival for a person, a nation and a world.
Matthew 6:29 states, And if thy right eye offend thee, pluck it out, and cast it from thee: for it is profitable for thee that one of thy members should perish, and not that thy whole body should be cast into hell.
II Corinthians 6:14 states, "Be ye not unequally yoked together with the unbelievers: for what fellowship hath righteousness with unrighteousness? and what communion hath light with darkness?"
I do not believe your assumption that it is easy to resist evil is correct. Even after accepting Jesus Christ as Lord/Savior and committing to following the commandments/doctrines of the Bible, and receiving the Holy Spirit, Christians are tempted and many fall under the influence of evil.
That is why Christians must have on the full armour of the gospel at all times.
Ephesians 6:10-20 "Finally, my brethren, be strong in the Lord, and in the power of his might. Put on the whole armour of God, that ye may be able to stand against the wiles of the devil. For we wrestle not against flesh and blood, but against principalities, against powers, against the rulers of the darkness of this world, against spiritual wickedness in high places. Wherefore take unto you the whole armour of God, that ye may be able to withstand in the evil day, and having done all, to stand. Stand therefore, having your loins girt about with truth, and having on the breastplate of righteousness; And your feet shod with the preparation of the gospel of peace; Above all, taking the shield of faith, wherewith ye shall be able to quench all the fiery darts of the wicked. And take the helmet of salvation, and the sword of the Spirit, which is the word of God: Praying always with all prayer and supplication in the Spirit, and watching thereunto with all perseverance and supplication for all saints; And for me, that utterance may be given unto me, that I may open my mouth boldly, to make known the mystery of the gospel. For which I am an ambassador in bonds: that therein I may speak boldly, as I ought to speak."