How about an option for "I reject false dichotomies"?
A few observations in general here, though, including the following:
The terms can be fairly well meaningless if they are based solely upon labeling and not the actual underlying principles involved. All this "I am a liberal" or "I am a conservative" does not actually mean that the people who self-identify in this fashion are actually advocating liberal or conservative principles. As a case in point, if a self-identified "socialist" offers opinions that are in diametrical opposition to socialist values when it come to economic policy or worker's rights they really aren't acting as advocates for socialism. A libertarian who supports discrimination against gay people isn't supporting libertarian values and there rae plenty of opportunities for people identified as liberal or conservative to misrepresent those ideologies.
I find all this "I am a liberal" or "I am a conservative" stuff (as opposed to I am advocating liberal values here or I am advocating conservative values there) to be pretty tiresome at times to tell you the truth because it only acts to invert the relationship between people's values andt heir politics. Instead of saying "I believe in these values, therefore my opiniopn on this subject is such and such", there is a great tendency to say "I am a liberal and liberals support this, so I should too". It is the conformity of opinion I reject, and especially when much of that conformity does not really stand up to the rigors of the ideologies, themselves. It's not a club one joins
When people start a sentence with "those liberals", or "you conservatives", I usually find myself stopping right there because I figure the person ereally has little to offer. If the world were black and white, it would be painted as such, and so dividing the world into just two choices only draws a line between people.
In any case, though, I am quite liberal on some issues, moderately liberal on others, fairly centrist on one or two and would fall on the conservative side on another one or two.