Republican. Not Communist.
I found this election map of Moore’s last statewide election in 2012. Maybe an indicator of how Moore might fare in a general.
Here, Moore won 52%-48%. Basically, Moore landslided in the rural areas, won the suburban counties while losing the counties containing the state’s major cities plus the “Black Belt” counties. Some of the city losses were slight (Mobile, Huntsville), while others were big (Birmingham, Montgomery).
Having said that, 2012 was a presidential year, and black turnout was up. And since Moore is running for a federal office, the issues are very much in his favor. Moore’s “polarizing” image might cost him some votes in the cities, but rural Alabama is likely even more Republican in the Trump era than it was back in 2012. He should do much better this year.
http://uselectionatlas.org/RESULTS/state.php?fips=1&year=2012&f=0&off=50&elect=0