I need some SERIOUS advice on religion...?

Ok let me just start off by thanking everyone in advance for giving me SERIOUS answers. I don't want any crap condescending answers from smart %$! people. So here's my beef I am 17 and am really wondering about such religions such as paganism and wicca and such religions. I am Christian and have been raised as so, but my family has never been very strict on it. My Mom is a die hard Christian and really doesn't understand it, but we haven't really talked about it much. Well anyways i'm wondering about some controversial topics like Christian Wiccan/Pagans, and all the buzz about that. Also I just need some guidance. I mean I really understand some of the Pagan practices, I just don't get the hatred between Pagans/Wiccan and Christians? I was looking on a site and found some pagan pins for sale and they kinda upset me. Like one said "You found God? If nobody claims him in 30 days, he's yours" and another said "My Goddess gave birth to your God", and a multiple of others. They just seemed hateful. Why though? Why show so much hate and rebellion, I mean can't we all just get along peacefully and respect each other? Seriously if anyone has an opinion on these subjects I would love to hear them. And if anyway can help guide me or give me some advice I'd really be grateful. I don't know about y'all but I am so tired of stupid fights over disrespect.