Cars aren't individual choices. They are a societal choice that costs a trillion dollars a year to make work. The issue is cars. No matter which way you slice it, we need to remove cars, and that will necessarily mean making driving a car worse.
I don't think that hiding your goals or intentions is politically a good option. Don't argue something you don't believe in. If you (correctly) identify that cars and car-supporting infrastructure is one of the biggest problems in North America, you have to call it like it is.
We don't actually want other options. We want better other options. The only way to get that is to de-incentivize cars. That's the reason why cars suck to begin with, the proliferation of cars makes every other mode of transport worse, except for inter-city rail, if only by sheer mass effect.
Now I agree that we shouldn't other people by putting them in categories and identifying them with the car. That doesn't mean that we stop opposing the real policies that make cars a good personal option and counter them with policies that make alternatives better, generally at their expense in some way or another. I agree that inter-personally the matter can be approached better, but that does not carry to changing your policy positions or goals, and that should never justify lying about what those are.