It seems all but impossible to get professed Christians to even be faithful to their church's services today; let alone extending themselves to actively engage this rapidly decaying society!
Looking at social media, I see church leaders ditching services to attend secular sporting or entertainment events- they are even so out of touch with spiritual things as to be posting "selfies" and writing about the good time that they are having. They seem to be clueless to the fact that they have openly defied the Lord's mandate about faithfulness to the times of assembly, and have opted. rather, to be conformed to the world around us!
Am I saying that such events are sinful? Well, many are! They are so filled with drunkenness and profanity that the atmosphere is anything but wholesome. Some will object that we have to "mingle" with the world in order to reach them; and that is true! But, the plain truth is that "evangelism" is rarely the purpose for such activities! There is simply a desire for the things of this world more than for the things of God!
Indeed, the god of this world has blinded the eyes of many today! The prevailing sentiment is that "we are rich and increased with goods and have need of nothing." But the Lord sees things for what they really are! (Revelation 2 and 3).
If the existing American churches are ever going to realize a spiritual awakening, then it is time to lay aside weights and sins and seek the Lord for His touch!
If they refuse, then the Lord will likely raise up others who will take up the banner of Christ and serve Him in spirit and in truth! The call is consistent in old & New Testament: Come out, be separate, put away sin, embrace righteousness and walk in the pathway of obedience to the Lord!