I think there is probably a great deal of truth in this observation; so I would favor McDaniel in the runoff election.
In many states, it would probably be a safer bet to go with the establishment conservative, in order to win the necessary swing votes. (After all, merely winning a primary is a phyrric victory if one cannot win the general election.) However, Mississippi is a deep red state; so I doubt that the Democratic challenger will prevail, in November, against either Cochran or McDaniel.
Rabid RATS will go out and vote for Thad. And they will bus in their inner city and plantation voters. I say this based on one friend who pushed voting for Thad in the last few weeks. He and his liberal private school supporting pals will go all out now. They don’t have anything else to do.