The problem with the numbers is that unless we got extraordinarily lucky with exact placement of about 5M votes - just in the right states - you wind up needing a bit more than 4M...
You need to take Ohio, Colorado, Virginia and Florida... plus a few more.
And you have to do that while retaining Georgia, NC, Arizona, etc... so if the base is constantly being ‘purified’ of classes of Republican voters who aren’t ‘hard-core’ enough to suit everyone’s needs then the problem isn’t ‘growing the numbers’ but ‘stemming the drop’.
Each day the numeric advantage held by ‘older upper middle-class white voters’ (like me), is growing smaller. And the numbers of younger and minority growers is increasing...
So when you want to talk ‘winning’ through growing the white-conservative vote, you have to ask yourself ‘from where’?
The vote was split 60/40 in the Republicans favor for older men over 45, but break-even for women and favored Democrats below 45... so the ‘Growth’ would have to come by finding a 4M (using you numbers) advantage in the +45 white-men category.
And to accomplish a 4M+ with at 60/40 split then 20M more have to vote... which is hard to imagine.
And that assumes that moderate Republican votes don’t wind up staying home or switching over.
The Democrats did a blow out effort in 2008 and got all the leftwingtards and black people who wanted to vote registered and out and that was 69 million. They had 4 million die leaving 65 million, but they got 66 million votes in 2012. That means they only found 1/2 million more voters from 2008 to 2012!
We found 5 million and they got 1/10 that number.
5 million more than we have plus 4 million to make up for the dead against the Democrats with their 62 million and no growth (but they still have the boomer deaths to deal with themselves) and we skunk them for the rest of the century!
BTW, we only needed 100,000 voters in the right states to win in 2012 ~ and we'd had Virginia in a walk but Romney demonstrated to us he didn't respect us at all. Margins here can be very narrow ~ he dismissed that ~ after all he had a lot of big money donors in Virginia.
BTW, none of us know any of those big money donors!
BTWm, the Republican max was in 2004 with 63 million. The Democrat max was in 2008 with 69 million. There are 90 million more eligible adults who simply don’t vote. WE CAN GET 10% of them if we care!