It's not "putting up with". What are they going to do otherwise, not take insulin?

Demand action from their representatives. Works in a lot of other areas but not in health care. I guess the lobbies are too strong.

Those so-called "representatives" created the problem in the first place by restricting the supply with drug patents, FDA regulations, import restrictions, and limitations on the number of new doctors and medical facilities, and now you want to "demand action" from them on behalf of patients? Good luck. They're representing someone all right, but it's their donors, not their official constituency.

That, BTW, is a consequence of the system responsible for selecting and influencing those in power and not any particular individual, so voting in someone new won't change anything. And that goes for much more than just health care.