In other words, you want them to invest more money into building safer cyclist infrastructure?
An obstacle isn't going to magically pop into existence the moment you mount a bicycle. Car-centric road design can indeed be dangerous to cyclists, but that says more about the road design than it does about the concept of cycling. Build better roads and cycling isn't dangerous!
Do you live in a world where money is infinite? I'd rather have very good public transport, which is accessible to everyone, safe and can give physical workers so rest and a quiet time after work, than bike lanes everywhere.
And the problem with removing cars from the city center is that many users still need cars, either because they have families, or because they work and need a motorized vehicle (e.g a plumber).
Why do you think a plumber requires a car and not, say, an electric cargo bicycle?
Because a plumber needs to carry heavy things, such as a water heater tank, and possibly more as he will intervene on multiple places during his day? And that he may need to get back to the shop/depot in the suburb during the day to get additional parts, if needed? Do you live in a magical word where things teleport by themselves?
I've never worked with a plumber that has anything they need in their van / truck. They always need to go buy something. This departure generally doubles the cost of whatever plumbing is happening.