Political correctness stamps out that which it politically opposes.
The Ramones (Johnny Ramone and possibly Tommy, who was in bands with him back to the 1960s).
The Smithereens
Nugent (although time was he was a proud atheist)
Dale Hawkins (the originator of Suzie Q)
The Vandals (maybe, or maybe they were just instigators)
Moe Tucker (drummer of the Velvet Underground).
There is no “list”. Makes it harder for the left to blacklist them...
the title says conservative music, not musician
a much smaller pool