Its got nothing to do with confounding variables. People with less education are more liekly to vote conservative. That is an observation based on recent polling. It is blatantly obvious that older generations had less access to higher education,. I find it sad that you even have to point that out as I assumed you would know better.
yes it does... the other poster highlighted why, in fact you've even acknowledge the reason yourself there older generations had less access to higher education - age is a rather obvious confounder here if you're going to talk about education and voting patterns