Guys who have called out GGG Daniel Geale (just beat him) Erislandy Lara J'Leon Love Kid Chocolate Chavez Jr Sergio Martinez (retired) Curtis Stevens (beat him) Sakio Bika Bernard Hopkins Marco Antonio Rubio (beat him) Fernando Guerrero Sergio Mora Matt Korobov Andre Ward Anthony Dirrell Luis Arias Andre Dirrell Willie Monroe Jr (beat him) Sam Soliman Vanes Martirosyan David Lemueix K9 Anthony Mundine Carl Froch (retired) James Degale Gilberto Ramirez Tureano Johnson I can give you sources for every single one
Nearly all of the fighters you mentioned are with PBC. It's easy to call someone out when you know damn well the fight will never materialize. How many times will I have to repeat that Golovkin has an exclusive contract with HBO? I have yet to hear any PBC fighter mention that they'd be willing to fight him on HBO.