Fat chance!
I agree with the premise. Let's look at this with a historical perspective:
So, if [Jimmy] Carter wins, Republicans in DC will become more conservative??
Heck, yeah! When things go extremely wrong, people will go to extremes. Either for the better (like they did in going from Carter to Reagan) or for the worse (like Lenin's revolution, Hitler's takeover, etc.). Make no mistake: an Obama presidency would be a manifest disaster and what better advertising for the conservative philosophy is there than a beautiful demonstration of what liberalism leads to?
Except that I don't think Obama will govern from the radical left. He is not so stupid. He will govern from the center left, slightly to the left of Bill Clinton. The only place you will see far left decisions is judicial appointments. For most Americans, this will mean very little change (as from Bush I to WJC), and so with his smooth rhetoric and media fawning, will easily win re-election. Obama is not going to call for a Socialist realignment of America. That is a non-starter.
So those hoping for an unleashing of radical liberalism from Obama will be disappointed.