Yes, there are thousands of A319, A320, A321 jets serving as the backbone of our airline industry, just as there are thousands of 737s and 757s doing the same.
More 737s have crashed (for all reasons) than A319, A320 & A321s. So, this notion of fly-by-wire and computers being dangerous is absolute nonsense written by ill-informed morons who are no different than those who want cars to return to drum brakes, manual transmissions and carburetors.
There are also more 737s delivered than the Airbus 320 variants, apparently. Some 2000 more.