If you think leaving Obama IN power, weakens the left then you are mistaken. He will strengthen the left with choking regulations, he will seat more judges, etc.
We must establish a conservative stronghold in both houses of congress to legislate conservatively and we MUST remove Obama from office with the hope that the executive fiats (i.e. regulations) can be mitigated.
You have clearly skipped any consideration of the logical consequences of Romney versus the logical consequences of a greatly damaged Obama opposed by the majority in a plurality win. It seems you, like so many, are so paralyized with fear that you can only contemplate a supernatural-Obama-centric view of things, which is as unbalanced as a solely Romney-centric view of things. You should consider BOTH long and carefully, and weigh the differing sums.
That you conclude a plurality-elected Obama, openly and definitively opposed by the majority of voters and facing a victorious conservative movement in the GOP after having defeated poisonously liberal Romney, who is essentially IDENTICAL to Obama in his political philosophy AS DEMONSTRATED BY THE RECORD, would do anything BUT weaken liberalism IN BOTH PARTIES, indicates limited appraisal of the whole.
If Romney is the President, you can kiss ANY hopes of having a "conservative stronghold" in Congress goodbye. If you want to know the future, look at the past. The worst loses for conservatives in Congress have been with a liberal, moderate Republican in the White House.
Romney is BAD NEWS from every angle. Voting for him is every bit as nuts as voting for Obama. VOTE ABOOR.