I expect the GOP would have relatively little "strongholds" compared to the Democrats. My first impressions Republican potential heartlands include: Alberta - with the potential to swing other prairie states; West Australia and Queensland; conservative Asian societies like Singapore, South Korea, Taiwan, Japan and Indian BJP strongholds; Poland, Hungary and various other anti-communist East Europe countries; Ireland fifteen years ago; Bavaria; Alpine Europe; and Chile.
Of course, the premise is ridiculous; but an interesting thought excercise nonetheless.
Seriously, there are very few countries that would vote for the Republicans. In most countries, they would be a fringe far-right party. Like the FN in France or whatever.
The Republicans are not "far-right", in any European sense of the term.
