Wait 20 years for demographics to catch up or hope the Republicans accidentally nominate a child molester or Martha MsSally.
But in 20 years time it's basically inevitable that the Republicans (or whatever right-of-centre party that replaces them should the GOP collapse, which is very unlikely IMO) will be doing much better with minority voters than they are now. The 'white grievance' strategy is nearly at the stage that it very much struggles to win them the presidency (the popular vote being near impossible) . This prospect of irrelevance will basically force the GOP to eventually jettison the most loony part of their base try to appeal to minority groups as well as suburban moderates.
The argument that every state will become Democratic eventually because of 'meh... demographics' is probably the most awful political argument trotted out on this forum. Sure, the Democrats have and will continue to have a significant advantage in American politics in the short term but their coalition will eventually break apart, likely due to the GOP managing to win over conservative/moderate minority voters. By the time Kentucky reaches the demographic makeup that it would require flip based on today's political alignment, the national political climate and voter coalitions of both major parties will have changed significantly enough to make this an irrelevant political indicator.
