"As a political atheist, I do not have to be in total agreement with one and total disagreement with the other. I can listen to both friends drone on about the mess caused by the other political domination with a degree of objectivity."
You might qualify as an independent - a significant category of active or potential voters.
"I have found that there is no need to look for a savior to make everything better."
You have lost the hope that your vote will make a difference.
" I have rejoined the ranks of the nonvoters."
I encourage all informed individuals to vote. Uninformed voters are just going thru the motions and don't contribute to better governance.
I promote proportional representation with large, multi-seat districts. That way more people with different political beliefs will have representation.