Here are some key points in a recent article in the Christian Post. It's pretty much a doom and gloom outlook for N. America and speaks volumes with regards to our failure to reach out to the lost and disciple new believers.

U.S. Evangelicals Pessimistic about Christianity in America
By Michelle A. Vu
Christian Post Reporter

“Evangelical leaders are very bullish on the future growth of Christianity, except in America,” said Leith Anderson, president of the 30 million-member National Association of Evangelicals (NAE).
In the latest Evangelical Leaders Survey, released Tuesday, respondents said they overwhelmingly (94 percent) believe the number of Christians worldwide will increase in the next ten years. A mere four percent of respondents said the number of Christians will stay the same, while two percent said they are unsure.

When it came to the United States, most of the U.S. evangelical respondents said they believe the number of Christians will stay the same at best, but will more likely decline

Here's their take on the reasons for dwindling number of believers in N America.

American Christian leaders, in response to the report, called the survey results troubling and an indication of a theological crisis among the country’s Christian population as well as the growing pluralism in America.

Here's another way to look at this:

Can it be that N. American Christians are finding other ways to live their faith without the institutions that keep track of the numbers?

Either way you see it, our natural response to Jesus saving us is - love for Him and love for those we come into contact (our neighbors). I dont think it's a losing battle. I think we need to do our part and then believe that God's Holy Spirit will draw people to Him.