My mother is 54, separated, working minimum wage job. She cant afford $300 month healthcare & didnt qualify for subsidy!

My mother is 56, she is currently separated and works a minimum wage job. I have tried to apply for Obamacare for her but she didn't qualify for a subsidy and will have to pay $300 dollars for healthcare monthly. That is ridiculous if you ask me! My mother can't afford that!! She also doesn't qualify for medicare or medicaid. Obamacare seems a great idea for many people and I believe everyone deserves the right to be able to go to a doctors office without the worry of being charged a bill they will never be able to pay off. I am starting a petition for people like my mother to be given the opportunity to pay a healthcare based on income through Obamacare. Everyone deserves the right to take care of themselves & to be there for loved ones. My mother needs a health plan please help