They forgot at least one mystery: What determines the fermion mass spectrum and specific mass vlaues? Why do these particle masses take such seemingly random

They forgot at least one mystery: What determines the fermion mass spectrum and specific mass vlaues? Why do these particle masses take such seemingly random values? Related: Why are these masses so much smaller than the Planck mass? For comparison, the electric charge is sqrt(alpha_em) or ~1/11th the value of the Planck charge.