Complex sentence: Even today, there are very few politicians and commentators who would define themselves as Producerist or anti-Producerist, and among those in the general public who would be sympathetic to a Producerist program or political party, only a vanishingly small percentage are even aware of the term.
Split into simpler sentences: Even today, there are very few politicians and commentators who would define themselves as Producerist or anti-Producerist. Among people in the general public who would be sympathetic to a Producerist program or political party, only a vanishingly small proportion are even aware of the term.