The ACA had had its issues, but it has helped provide thousands of people who didn't have previous access to insurance with coverage. The AHCA is a complete mess and will drastically reduce those who have access to healthcare while at the same time increasing costs, the opposite of what Trump promised. Doing this will disproportionately harm low income individuals, people with disabilities and preexisting conditions, and women (since pre ACA many insurance companies wouldn't cover pregnancy related costs or considered it a preexisting condition and reason to deny or remove coverage). These are things that the ACA found solutions for and that the AHCA has no answer for or an answer that is so convoluted that I can't make any sense out of it and I have a master's degree in public health and study health care law in depth.