You are exactly right. Much of the refrain from the "true conservatives" against GOP candidates here is word for word what originated from the left either from the media narrative or the opposing campaigns.
I’ve got a long history of being a “purist” but I actually do weigh pros and cons as well as look at strategies. So far I have yet to see any strategy that tells me that giving democrats complete unrestrained power is a good idea.
We can survive Obama but we can’t survive continued democrat control of the Senate + Obama.