Whether you believe in God or not does not matter much, whether you believe in Buddha or not does not matter so much; as a Buddhist, whether you believe in reincarnation or not does not matter so much. You must lead a good life.
If I am only happy for myself, many fewer chances for happiness. If I am happy when good things happen to other people, billions more chances to be happy!
Our love could change the orbit of the earth. So, if a meteor ever comes hurtling towards earth with the guarantee of destruction, top scientists may call on us to, well, you know, do it like crazy for the sake of humankind.
Today, due to the massive Chinese population transfer, the nation of Tibet truly faces the threat of extinction, along with its unique cultural heritage of Buddhist spirituality.
In the past, destruction of your neighbour might have been considered a victory, but today we are all interdependent. We live in a global economy; we face problems like climate change that affect us all. The 7 billion human beings alive today belong to one human family. In the context that others' interests are in our interest and our interest is in their interest, the use of force is self-destructive.
All religions try to benefit people, with the same basic message of the need for love and compassion, for justice and honesty, for contentment. So merely changing formal religious affiliations will often not help much. On the other hand, in pluralistic, democratic societies, there is the freedom to adopt the religion of your choice. This is good. This lets curious people like you run around on the loose!