I dis agree, not all Christians unabled to defend thier faith.Because I can defend it and I will stand what I believe even in the land of Muslims.
I work at Dubai for 8 years as nanny,I am a Roman Catholic and a religious person.After a few months of working,its just okay..until one evening,the lady went inside my room and when she saw i was praying,she turn off the lights.I was shocked and devastated but I continued praying in the dark.In the morning,i waited the lady when she woke up,and I asked her if I can asked her something..she agreed.
So then,i asked her why she turn off the lights even when she saw i was praying,she did not answered so i continued.You know Madam, that when you accepted me to work with your family..I am a Catholic.I was praying in the room and that was time to sleep so i did not do anything wrong.If you have God,I do have also,and if you think that we have different Gods you are wrong,because there is only one God.So,if you don't like me,send me home to my country and if you still want me to work with you then respect my faith and religion because i respected yours.
So that was it,I worked with her family for 8 years,though they all convinced me to turned myself to become a muslim,but ..I just replied..to become a muslim would not make any difference for me because we only have one God.
I think the people who can not defend thier faith are still have doubts of what they believe,they are not sure what they believe for.But true believers knows who and what they believe in.