I've now seen a field-temp breakdown plot for type II SCs and realized I forgot the thermal energy of the bosons themselves.
Thus I had been suggesting that thermal breakdown of HTSCs occured when there was enough excitation in the fermi stack for escape holes to form below the bandgap.
This is wrong I'm glad to say because bandgaps are much bigger than the milli ev of thermal excitation.
In type I there are 2 temp dependent effects on boson breakdown, exit holes appearing further down the fermi stack and extra boson thermal energy to add to the divorce energy. Since the fermions' energy is much higher than the bosons' available holes come down the stack faster than the available total divorce energy rises.

In HTSCs the natural divorce energy lies just beneath a bandgap and hence thermal escape holes can only form at the top of the bandgap. Now only boson thermal energy can lift the total available divorce energy to the top of the band gap to allow breakdown.

So one would expect the Type II curve to conform to
E(top of bandgap) - B-E thermal distribution (with a little bit of Type I at low temp till the fermions reach the bandgap).

Vortices or inclusions:
It seems reasonable that a SC region has an overall energy term for the displacement it causes in the magnetic field and also a surface energy term where there is a boundary with non-SC field. At low field strengths the surface energy would act like a surface tension and gather the bosons but as higher fields attempted to squeeze the bosons together they might find that the surface energy cost of allowing inclusions was more than offset by a reduction in the field displacement term. It seems plausible that allowing inclusions allows localized regions with a high surface area and associated energy. I'm guessing the boson's resilience to this effect is associated with the divorce energy to top of band width gap.

Thus to restate the search for a room temp super conductor, we're looking for a lattice where the divorce energy is sufficiently far below the top of the masking bandgap that it takes more than 300K of thermal energy to lift the bosons to escape states.

Looking for feedback honest!