The bible provides 8 types of marriage. Your ignoring the other 7 doesn't change that.<quoted text>
Nope. Bible clearly states one man one woman. It's a Christian belief. How one church or another choose to define it is regardless. The bible what all Christians believe in being the true word of god clearly states what marriage is. It is their choice to redefine gods words. Just as it is for them to reap what they sow.
Nor does it provide an excuse for making all persons of all faiths as well as those of none at all, adhere to your religious beliefs. You are free to apply any additional restrictions on marriage you choose in your own church. You may not impose your religious restrictions on those of other religions or none at all.