What they are torqued about it that MT, SD, ND and WY get 1 representative, yet have fewer people then a district in say NY or CA. Also since they get 90%+ of the vote in those places, they don't think it's "fair" that an R that squeaks out a 51-49% in flyover country counts the same. What they are advocating is that everyone in the US votes, and then the House is divvied up by what percentage each party wins. True democracy. Mob rule.
Exactly what the founders DID NOT want.