The Daily Mail is a sensationalist news rag, I am surprised it is appears so often on CAF.
Your “absurd relationship” reasoning is known as the “Slippery Slope Logical Error Fallacy” also known as “the Camel’s Nose”
The Slippery Slope is a fallacy in which a person asserts that some event must inevitably follow from another without any argument for the inevitability of the event in question. In most cases, there are a series of steps or gradations between one event and the one in question and no reason is given as to why the intervening steps or gradations will simply be bypassed.
This “argument” has the following form:
*]Event X has occurred (or will or might occur).
*]Therefore event Y will inevitably happen.
Example of fallacious logic that we have seen on CAF several times.
*]Same Sex Marriage is being legalized
*]Therefore, before long Incest Marriage will be legalized
This sort of “reasoning” is fallacious because there is no reason to believe that one event must inevitably follow from another without an argument for such a claim. This is especially clear in cases in which there is a significant number of steps or gradations between one event and another.
Source: Nizkor Project