But I think if we focus too much on gay marriage, we miss the point. We have to ask ourselves, what is marriage anyway? This is a critical question. It must have a definition. Any word without a definition is pointless. A "fish" is a particular type of animal. According to the definition, whales are not fish, nor are beavers. But what if people demanded the term fish also include rodents, reptiles, and amphibians. Well, the word just lost most of its definition. Eventually it could be erased. So it is with marriage.
But what is the definition of marriage? According to Catholic teaching, marriage is a
"covenant by which a man and a woman establish between themselves a partnership of the whole of life and which is ordered by its nature to the good of the spouses and the procreation and education of offspring. [It] has been raised by Christ the Lord to the dignity of a sacrament between the baptised."The truth is, the definition of marriage has already been violated by the state and by many couples. Here are some things which are offenses against marriage in the eyes of the Church, and if agreed to before a marriage, could invalidate it:
1. Couple decides from the start that they will not have children.
2. Couple decides they will use contraception
3. Divorce
4. In-vitro fertilization
Gay marriage is not a real marriage, but nor is a permanently and voluntarily infertile marriage, nor is divorce an option for a true marriage. In-vitro fertilization is also an illicit act that violates marriage. Heterosexual couples have already been violating the sanctity of marriage, and that's a major problem. Heterosexual couples decided long ago that marriage is just about mutual love and if those feelings of affection wane, then divorce is an option. This is a major perversion of what marriage is.
We shouldn't act as though marriage was all fine and dandy until gay marriage came around. Ever since the 1930s when many churches accepted contraception, the sanctity and true nature of marriage has been attacked.