I don't see how lower ridership means bad transit. Transit is transit, it is there as an option when you want to take it. The fact others don't like taking it doesn't seem to affect you. Ridership is low, doesn't mean the system is bad, does it?
LA has low ridership because
1) it is very very cheap to own a car there (car price 20% lower, gas price 30% lower, insurance 50% lower than Toronto)
2) it always has a car culture. people aren't used to taking buses/subways - it kind of implies you are poor in Southern CA. Even most students drive.
I am not sure "deep down" transit riders in Toronto are glad they don't live in LA. It is too dismissive about another city. Well, maybe in LA they can afford to drive a car. How many of us don't have a car because it costs too much here in Toronto? The insurance premium in GTA is unheard of in California, which is at least partially why ridership of transit is high.
You seem to interpret high ridership as evidence that people like the TTC, when in fact they only NEED it. I honestly don't know anyone who have tons of positive things to say about the TTC.
Also: GTA is largely car dependent. Maybe not as much as LA but not far behind. Sometimes not having a car is not a choice. I know people who take the bus to carry television or 20lb of rice back home. I am sure you would prefer driving in many cases.