When  Bojack Horseman  issues a declaration, it can take the work of millions to undo it. Case in point: “esteemed character actress” Margo Martindale , who was thus anointed by the cult show and now cannot escape its golden handcuffs.  And so you doubted her in  The Americans , waited for her to erupt in  Sneaky Pete , wanted to erupt at  her  in  Million Dollar Baby , watched her scheme in  Justified , rooted for her to avoid an ursine in  Cocaine Bear  and many other things you have done and will continue to do for an esteemed character actress. But you’ve never seen Martindale in a lead film role, because she’s never  had  a lead film role. And now that she has, we may need to text Raphael Bob-Waksberg. Because the old moniker no longer applies. “Tour de force gut-punch lead actress” applies.  We’ll call it right here: Margo Martindale deserves an Oscar nomination this year. Yes, it’s only June, but it’s late enough.…