I'm not in the same boat and don't claim to be.

I use a phone with a keyboard attachment and thus my phone is too large to fit many man's trouser pockets either.

So now when I shop for trousers, I intentionally check whether my phone fits the pockets and weigh large pockets over looks.

It would be interesting if there's at least some women's trousers with large enough pockets. If there are and women in large numbers actually buy these and reject small-pocket trousers no matter the looks, I think that could get some traction.

If there's really not a single pair of trousers available, even via online shopping, that has decently sized pockets, then of course that wouldn't work.

I would guess (and this is decidedly an uneducated guess based on maybe a dozen or so women I talked with about that topic), many women do dislike small pockets, but dislike bad style, bad fit or bad looks more.