This is why states should not account population. If a majority of the map looks like this, that should be the end of the story.
Have you heard of population density?
What you're suggesting is that counties with a low population should "count" more than those with a high population.
Taking an extreme example. Imagine a state with 50 counties.
49 have a population of 1 each.
The other county has a population of a million.
Let's say the 49 people in the 49 counties all vote for Trump.
And all million people in the last county vote for Biden.
So in terms of counties you have 49-1, a nice red map with a little splash of blue.
But in terms of votes it's a million to Biden and 49 to Trump (or you could imagine it the other way around)
Are you suggesting that State should be red because of the 49 people?