I know that it is very likely only for propaganda purposes that Yahya bemoans the above fact, i.e. in order to make Islam palatable for people in the West, but even if we make the very charitable assumption that Yahya's lamentation is sincere, I wonder if he also sincerely believes, or if he sincerely and seriously wants us to believe, that his private beliefs and practices are a more authoritative example of what Islam is in both theory and practice than what is taught and followed by EVERY MUSLIM COUNTRY on the planet? In addition, even if we assume that Islam does not teach Muslims to commit such heinous acts, and also does not teach Muslim countries to sit idly by when such things are happening, how do Muslims like Yahya account for the pervasiveness and the gravity of such evil, both on the part of the Muslim perpetrators and Muslim spectators, in light of Islam's denial of the fall and human depravity? As well, if Islam actually teaches Muslims to behave in an altogether different fashion than what we see being carried out and tacitly approved by proactive Muslims and inactive Muslim countries, what accounts for the fact that they evidence no power or ability to live up to the requirements of Islam?
The answer to the latter question is that Islam has no Gospel; no good news for guilt-ridden, corrupt human beings. Even if Islam actually taught all the lofty ideals, virtues, and laws that Yahya, contrary to Boko Haram and all Muslim countries, pretends it does, Islam can do nothing to actually remove the guilt, cleanse the consciences, or transform the hearts of those who subscribe to it. Islam is a dead letter, a death-dealing letter. Islam of course makes all sorts of claims regarding forgiveness and salvation, but it has nothing on which to really ground such claims. It claims that those who come to Allah and Muhammad for forgiveness will subsequently find their law easy, but as Paul Williams pointed out after leaving Islam: "The Quran claims that following the path of Islam is easy (see Surat al-Baqara 185 and passim) and I find myself forced to respectfully disagree with the Quran." (emphasis original)
As Williams' words soberingly admit, Islam does not truly grant assurance to its followers or the power to live out the implications of that forgiveness.
How different and how sweet are the words of the apostle:
Therefore there is now no condemnation for those who are in Christ Jesus. For the law of the Spirit of life in Christ Jesus has set you free from the law of sin and of death. For what the Law could not do, weak as it was through the flesh, God did: sending His own Son inthe likeness of sinful flesh and as an offering for sin, He condemned sin in the flesh, so that the requirement of the Law might be fulfilled in us, who do not walk according to the flesh but according to the Spirit. For those who are according to the flesh set their minds on the things of the flesh, but those who are according to the Spirit, the things of the Spirit. For the mind set on the flesh is death, but the mind set on the Spirit is life and peace, because the mind set on the flesh is hostile toward God; for it does not subject itself to the law of God, for it is not even able to do so, and those who are in the flesh cannot please God.
However, you are not in the flesh but in the Spirit, if indeed the Spirit of God dwells in you. But if anyone does not have the Spirit of Christ, he does not belong to Him. If Christ is in you, though the body is dead because of sin, yet the spirit is alive because of righteousness. But if the Spirit of Him who raised Jesus from the dead dwells in you, He who raised Christ Jesus from the dead will also give life to your mortal bodies through His Spirit who dwells in you. (Romans 8:1-11)