The right might begin to become divided soon, but so far it definitely has not. Regarding worker unions (and the research I mentioned), I'm talking about the modern day, last 20-30 years or so, even though there's been a lot of fragmentation historically as well. There are no real leftist parties in my country with any success either because of the same thing, endless fragmentation, purity tests and ignoring the fact that actual workers are not socially progressive.