If it's patent enforcement, wouldn't a bill that reforms the patent protection for insulin makers make a lot more sense than this bill?
Most of the barriers are regulatory and profitability.
It is worth noting that bidens 35 is a copay limit, not a limit on what your insurance pays.
As a example for profitability, this non profit hopes to bring the total cost down to 30:
https://www.google.com/amp/s/amp.cnn.com/cnn/2022/03/03/poli...
The fact that patent holders can draw out the process longer than they’re supposed to should be reformed, but that doesn’t get as many political points as capping the price to the consumer.
They also tend to not want to change the way they’ve always done things and prescribe a cheaper formulation.
https://www.diabetesselfmanagement.com/blog/relion-insulin-f...
The really high prices are for patented, branded forms of insulin which have different release profiles. Those are often preferred because they do a better job of maintaining the patient's blood glucose in the correct range. Depending on the formulation they may start acting faster, or require less frequent injections.
https://www.goodrx.com/healthcare-access/research/how-much-d...