Yes they are Shudras. Here's 1818 inscription of Gangadikara Vokkaliga(elite vokkaligas) saying they are Shudras & accepts 4 varna system in old

Yes they are Shudras. Here's 1818 inscription of Gangadikara Vokkaliga(elite vokkaligas) saying they are Shudras & accepts 4 varna system in old