Those that will, do. Those who will not, don't. Even with the best of leaders how many will still effectively reject God and not bother? How many were followers of Moses but repeatedly repented and rejected both him and God until...?What power would the prayers of 320 million Americans have? Where is our "church" leadership?? We have two or three days to use the power of prayer or are we just too busy to bother??
"Because all those men which have seen my glory, and my miracles, which I did in Egypt and in the wilderness, and have tempted me now these ten times, and have not hearkened to my voice;
Surely they shall not see the land which I sware unto their fathers, neither shall any of them that provoked me see it" Num 14:22-23
But some are with Joshua and Caleb on this so keep on trying. Keep on praying.
Give God the glory!