Before we go off into the great liberal vs. conservative issue - here's
Joe Scarborough - a conservative.
Here's a self-proclaimed true conservative who babbles like Diane or Chucky. He has a national forum to share his stupidity.
My point - we want to avoid the blanket statements (as stated above by many) as we have jerks like this abounding.
---- Now are far as motives. The great divide seems to be urban and Northeastern (with urban centers added in other states - CA, IL, MN, etc).
In these regions, antigun sentiment abounds as the populations fear urban crime and have been convinced that they are incapable of defending themselves.
From what I've read in the lit - the urban and/or Eastern variables are greater predictors than lib vs. conservative. True, those areas have a greater number of liberals but the conservatives who are urban are in great part no better.
That's my take - and I don't want to start the lib. vs. conservative fight on other values.