Evangelism takes years, maybe generations and we do not have that much time to counteract this threat. The private sector needs to continue reaching out with the Word but the government must continue its path of vigilance and proactive intervention.
Perhaps it takes years to build worldly organizations to attempt to evangelize to the entire world by worldly mechanisms, but evangelism doesn't take years.
Evangelism is simply a spiritual gift provided by God the Holy Spirit to some believers as a communication gift of the gospel to unbelievers.
Evangelism, in the strictest sense of the word, may happen on a moment's notice, and only through faith in Christ and at the grace of God. It is a mechanism which sometimes reveals itself to some witnesses as a spiritual perception within the gifted believer to communicate in a fashion to the unbeliever so that he might understand the meaning of the Gospel. Evangelism is NOT an academic exercise. It is a spiritual gift, NOT a soulish gift.
There are many today who not only confuse evangelism with the physical and soulish activities of talking about the Gospel, but fail to perceive the spiritual significance of that which they speak. That failure has encouraged others to counterfeit that gift with worldly institutions, again counterfeiting His Body.
All that is needed is simple faith in Him, and He provides the rest.