Joining a religious cult/Being too religious

This happens to be a subject on which i am fairly passionate. I am not religious myself in any way, and others being religious does not anger or offend me or have any effect on my life. The only way in which i think someone can be too religious is when they knock on people's doors in an attempt to force their beliefs on others. Also when you pass people in the street and they are lecturing the passers by on the glories of god and why they are going straight to hell for not believing. i find this incredibly intrusive and just a little bit disrespectful to others especially when some people already have their own religion and have people come to their home to 'poo-poo' their beliefs. If people wished to become Jewish, Christian or Muslim etc, they would take it upon themselves to learn more about the religion and then become a part of it. I think that nowadays, rather than a way of life, religion is used as a weapon around the world. for example, the bombings on the world trade centre. Other extremist groups kill innocent people and then claim that it was done for their god and their religion, when all they are doing is giving their religion a bad name and the people who follow it. I think that people hide behind religion sometimes and cults prey on people such as these. They lie to innocent and gullable people as young as 14, suck them in, and then use them to do the evil deeds they didn't have the guts to do themselves. leaders of these religious cults are generally rich as they live off the earnings of their gullable followers. More often than not, these people are icolated from everyone they love so their is no danger of them being persuaded to stop what they are doing. they are made to agree to this on fear of not only their own death, but the death of their family and friends. All for god's work, but i do not recall that any religion tells people to cause the pain and suffering of others for their own selfish desire.