That is possible I suppose. But looking at it as objectively as possible, I don't see the 'group think' on the right like it exists on the left.
On abortion: almost 100% in favor of mostly unrestricted abortion laws on the left. Most approve of forcing insurance companies and businesses to provide for it and contraceptives on heathcare policies.
The right is all over the map on abortion though most don't believe government should force private businesses or insurance companies to do anything regarding it or contraceptives.
On gay marriage, the left is 100% unified in supporting it and in punishing all those who oppose it or who even say they oppose it.
The right is all over the map on that one too.
On immigration, the left is pretty well unified that Obama is addressing that appropriately.
On the right, there is much more diversity in the conversations about that.
On government spending, the left is pretty unified that the runaway national debt and huge deficits are not a problem.
On the right, there is much more diversity in what government spending is appropriate.
We can go right down the line issue by issue and see mostly the same phenomena.
I see it on both sides and have commented on it extensively.
What people fail to understand is that when people view politics as identity, they become part of a tribe, and when they become part of a tribe, their ego acts in such a way as to extend their protection of self to include the tribe in a generalized way. The double standards thus created are enormous, as when we engage the world with an "us vs them" mentality, we become so focused on the them that we forget the us.
People on the right too often use the term "liberal" as a simple pejorative. People on the left likewise with the term "right wing". They don't actually understand what liberalism or conservatism actually entail, as they lack the ability to understand politics in terms of principles and ideas. They see it only as identity.
Once a person falls for the notion that it isn't an idea that is liberal or conservative, but a person, they lose whatever objectivity they might claim by way of understanding. They are too invested in the process of polarization to have that objectivity. .
I agree to a point. But again I do think conservatives tend to be more issue oriented--more likely to see the short term and long term consequences of what government does--than are those on the left. Those on the left are much less likely to even be willing to talk about the unintended negative consequences of leftist laws and policies and will more often vote for the title that sounds righteous and noble.
Those on the right--at least those who aren't in the permanent political class in Washington--are much more likely to consider how various legislation will create slippery slopes and unintended consequences. And even the permanent political class does have to at least consider the opinions of those of us who they rerpesent.
And it is thus legitimate to observe the the person votes consistently with the left or right in determining who is the best person for the job.