2017 BMW 530I Suspension Problems

THE LOWER CONTROL ARM ON THE RT REAR FAILED ON A SUDDEN STOP AND THE VEHICLE LOST STEERING CONTROL I AVOIDED A MAJOR COLISION BECAUSE OF MY DRIVING EXPERIENCE , THE CONTROL ARM SPLIT IN 1/2 , THERE COULD HAVE BEEN DEATHS, I WAS TRAVLING AT A SPEED OF 55MPH NORTH BOUND ON INTERRSTATE 101 AT THE 280 /680 INTERR CHANGE AT 4PM ON MAY 27 2021, THE TRAFFIC WAS MODERATE THERE WHERE CARS IN FRONT OF ME BEHIND ME ON BOTH LANES LEFT AND TO MY RT. THE TRAFFIC CAME TO A SUDDEN STOP, I HAD AT LEAST A 6 CAR GAP IN FRONT I HIT THE BRAKES HARD, THE ABS SYSTEM WENT INTO PLAY , I FEFT THE FIRST PULSATE FROM THE BRAKE PEDAL AND HERD A LOUD METAL CRACKLING NOISE , AND LOST STEERING THE VEHICLE STARTED TO SWERVE LEFT I COUNTER STEERED TO KEEP THE VEHICLE...