Maybe you are familiar with Spoon Theory? Disabled people who are up in arms about straws typically argue that it's yet one more burden on them when they have too many as is.
I'm not well versed on the straws issues. But let's talk about the California bag ban for a minute.
I've lived without a car for over a decade. I also have a compromised immune system. Disposable plastic bags are cleaner than reusable shopping bags.
I almost never buy trash bags. I use my shopping bags as trash bags.
I don't feel guilty about needing and wanting plastic shopping bags for convenience and germ control.
The bag ban presumes you can just stick your stuff in your shopping cart, take it out to the trunk of your car and drive it home. It is a burden for poor people, pedestrians and folks using public transit. There is no limit on rich people paying the extra 10 cents per bag to have all the bags they want.
It's based on an assumption that you have a car and money and will not give up your car. It actively punishes serious environmental activists actually willing to live without a car.
Getting more people to walk would do more good, imo.