This is a huge problem, and it's one of the reasons that I say Canada is definitely not a perfect solution. I agree with you here.
> The US might have high standard costs but at least you have the option to pay for better than standard.
For a lot of people this is becoming less true over time, depending on where you live. Today there are states where no amount of money can buy you a (legal) abortion, and states where no amount of money can get your child gender affirming care. Tomorrow traveling for that care might be a felony too.
It seems reasonable that if someone is in a position to move to Canada, they are probably in a position to move to California, New York, or some other safer state, but I understand why people might opt to leave the US altogether.