The fact that it is possible for things to be different doesn't imply that they are. Entropically speaking, it's unlikely for two populations to measure up equally by any particular scale. However, that alone doesn't tell us much.
On another note, suppose both groups actually are quite similar in how ideological they are. One would be mistaken to then assume that the two groups have equally effective approaches for conducting affairs. Despite the fact that robustly measuring such effectiveness is currently far outside our grasp.
Coming back to reality, I would guess that both parties are not equally ideological. However, I do think there are very large segments of both that are almost entirely ideological, and that, unfortunately, these subgroups often take most of the limelight.
> The fact that it is possible for things to be different doesn't imply that they are
Right, so let's stop talking of theoretical possibilities and look at concrete reality. I don't know of the last time a party embraced ideology as strongly as today's GOP; anyone who doesn't see that will never see ideology anywhere - it hardly could get more extreme.
> I do think there are very large segments of both that are almost entirely ideological, and that, unfortunately, these subgroups often take most of the limelight.
Again, a false equivalence IMHO. Which very large, limelight-stealing Democrat group are you referring to? Hillary Clinton supporters were the largest group; she's almost the opposite of ideological. Obama and his supporters are very non-ideological. The participants in last Saturday's marches were generally non-ideological, AFAICT.
I agree with you that the Republicans are more ideological in recent years.
It's late, so I don't have the best examples, but I have a vague impression that there has been an increase of single-dimension, with-us-or-against-us identity politics. Perhaps I'm mistaking noisy for large. Even still, many of these groups do have legitimate claims...
Reflecting a bit, I suppose one main reason I posted was that I didn't like the implication that the mainstream left has become enlightened past the point of ideology. But perhaps that point is too much of a distraction in this conversation. Meh.
Btw, not that it should matter, but I lean left and voted for both Obama and Hillary.
Nope, that doesn't logically follow. Different ideologies have different impacts on the world. If you group people just by ideology alone you'll be missing the bigger picture.