Come on. I won't dispute your past experiences but you really should avoid extrapolating on anecdotal data.

Car ownership for Parisian households sits at 39%.

Zooming out to the Ile-de-France region (population: 12 million), 33% of households don't have a car.

source (french): http://transports.blog.lemonde.fr/2015/05/03/la-preuve-par-l...

Regarding your comments on safety, I certainly believe the city feels much safer today than in early 2000's.

(Obviously not talking about terrorist acts, as they are not caused by 'immigrants loitering in groups on the streets').