The Package deal fallacy reference article from the English Wikipedia on 24-Apr-2004
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Package deal fallacy

Sponsorship the way you would do it
The logical fallacy of the package deal consists of assuming that things often grouped together by tradition or culture must always be grouped that way.

It is particularly common in political arguments: "My opponent is a conservative who voted against higher taxes and welfare, therefore he will also oppose gun control and abortion." While those positions are often grouped together as "conservative" in American politics, there's really no reason someone couldn't approve of some but not others.