Harvey, clearly, great evil has been done in the name of religion. However, is it logical to judge Christianity on the basis of what some self-proclaimed "Christians" have done? Wouldn't it be wiser to examine the life and words of Christ and the teaching of the New Testament before you condemn Christianity?
Matthew 5:1-11, 38-48
The Beatitudes
1 Now when he saw the crowds, he went up on a mountainside and sat down. His disciples came to him, 2 and he began to teach them saying:
3 "Blessed are the poor in spirit,
for theirs is the kingdom of heaven.
4 Blessed are those who mourn,
for they will be comforted.
5 Blessed are the meek,
for they will inherit the earth.
6 Blessed are those who hunger and thirst for righteousness,
for they will be filled.
7 Blessed are the merciful,
for they will be shown mercy.
8 Blessed are the pure in heart,
for they will see God.
9 Blessed are the peacemakers,
for they will be called sons of God.
10 Blessed are those who are persecuted because of righteousness,
for theirs is the kingdom of heaven.
11"Blessed are you when people insult you, persecute you and falsely say all kinds of evil against you because of me. 12 Rejoice and be glad, because great is your reward in heaven, for in the same way they persecuted the prophets who were before you.
38 "You have heard that it was said, 'Eye for eye, and tooth for tooth.'[7] 39 But I tell you, Do not resist an evil person. If someone strikes you on the right cheek, turn to him the other also. 40 And if someone wants to sue you and take your tunic, let him have your cloak as well. 41 If someone forces you to go one mile, go with him two miles. 42 Give to the one who asks you, and do not turn away from the one who wants to borrow from you.
43 "You have heard that it was said, 'Love your neighbor[8] and hate your enemy.' 44 But I tell you: Love your enemies and pray for those who persecute you, 45 that you may be sons of your Father in heaven. He causes his sun to rise on the evil and the good, and sends rain on the righteous and the unrighteous. 46 If you love those who love you, what reward will you get? Are not even the tax collectors doing that? 47 And if you greet only your brothers, what are you doing more than others? Do not even pagans do that? 48 Be perfect, therefore, as your heavenly Father is perfect.
Consider the life of Christ. He was sentanced to death on trumped up charges. He was beaten and forced to drag a heavy wooden cross through the crowded city streets. Then he was crucified on a hill outside the city, which was also used as a dump. While they waited for Jesus to die, the soldiers tossed dice and gambled for his cloak. But Jesus forgave the priests and elders and soldiers who crucified him. While he was on the cross he prayed: "Father, forgive them."
Consider also Paul's admonition in Romans
Romans 12:9-21
9 Love must be sincere. Hate what is evil; cling to what is good. 10 Be devoted to one another in brotherly love. Honor one another above yourselves. 11Never be lacking in zeal, but keep your spiritual fervor, serving the Lord. 12 Be joyful in hope, patient in affliction, faithful in prayer. 13 Share with God's people who are in need. Practice hospitality. 14 Bless those who persecute you; bless and do not curse. 15 Rejoice with those who rejoice; mourn with those who mourn. 16 Live in harmony with one another. Do not be proud, but be willing to associate with people of low position.[3] Do not be conceited. 17 Do not repay anyone evil for evil. Be careful to do what is right in the eyes of everybody. 18 If it is possible, as far as it depends on you, live at peace with everyone. 19Do not take revenge, my friends, but leave room for God's wrath, for it is written: "It is mine to avenge; I will repay,"[4] says the Lord. 20 On the contrary: "If your enemy is hungry, feed him; if he is thirsty, give him something to drink. In doing this, you will heap burning coals on his head."[5] 21 Do not be overcome by evil, but overcome evil with good.