I appreciate your comment. A common theme I've seen through my politically conscious life (15 years maybe?) is that Democrats think Republicans are stupid, where most Republicans just think Democrats are misguided.
Where what you said comes into that is that Democrats think they can win just by nature of Republicans being incompetent. Republicans are out there, like you said, doing the dirty work to win elections and mind/vote-share, because while they disagree with Democrats, they know they can't just rest on their smug sense of superiority.
Democrats know most Republicans are stupid. Democrats just don't realize most of them are stupid too. Democrats try to play like it's an even playing field where everyone is playing by the same rules and are too afraid to get their hand dirty or be seen as having had to overcome issues in the past. Republicans see character flaws as a bonus just to spite the libtards because Rush told them right. The smart ones in the political sphere are just two sides of the same coin with slightly different opinions on the same issues to anchor what they think should matter in people's minds. I'd politics were rational we'd have significantly different political systems than we have now.
Where what you said comes into that is that Democrats think they can win just by nature of Republicans being incompetent. Republicans are out there, like you said, doing the dirty work to win elections and mind/vote-share, because while they disagree with Democrats, they know they can't just rest on their smug sense of superiority.