Is there a single active duty general or admiral protestng these changes, up to and including resigning their commissions?
Why should they? Nothing to gain, a lot to lose. If a bunch of women break down under stress, no skin off their nose.
Possibly 1 or 2% of women could physically complete infantry training and a 4 your tour of duty in the infantry. About 504 of males could do the same. Of the few females that could complete infantry duty, half of them would probably sustain permanent physical injury. Of the males the number of injured would be considerably less. So, in practical terms the number of women who would be able to do such duties is so small that required accommodations to supply chain and social interaction rules could not be justified. Anyway you look at it, this is a very stupid policy change and is a poor usage of available resources.