If you want to believe the affluent Ms. Chavez couldn’t install a ramp, go right ahead. It’s easier than moving. I’d sooner do either than consign my mother to a nursing home.
There’s an old saying in Europe, about the dog having innumerable reasons to assault its own mother (or words to that effect).
There is an older saying "No amount of reality will convince the lunatic"
Have a lovely evening ma'am.