NO! It may not be as strong in America as it used to be, but there are still tons of people all over the world who believe in Jesus. People will be ridiculed, tortured, even killed for believing in Jesus. That doesn't sound over to me. If you don't believe me, you should read a great book called "Jesus Freaks" about Christians all over the world persecuted for their beliefs.
Just a trickle yet with probability of going into a landslide. (See link "As their numbers stall, megachurches seek 'seekers' ") The church age does not end until the Rapture of true Christian believers.
Perhaps yes. In several Western nations, Christians are now a minority of the population. Although the United States lags the trend, the proportion of Christians in the population is falling steadily. Christians will say that is a bad thing, but perhaps it heralds in a new age of tolerance and understanding.
sun ended the ice age
The French Revolution ended the age of absolutism.
Metal Church ended in 2009.
Relief Church ended in 1847.
Australian Church ended in 1957.
Church of the Tithes ended in 1240.
sun ended the ice age
St. Lawrence Church ended in 1986.
United Secession Church ended in 1847.
Church Farmhouse Museum ended in 2011.
Universalist Church of America ended in 1961.
Protestant Reich Church ended in 1945.