Will a loose lower control arm damage the axle?

[bulkwarrior]

My driver side front axle boot has a crack so I took the car to the shop to replace the boot. The tech at the shop said it will cost just as much to replace the half axle, which come with boots and stuff. I agreed. Just a few days after the new axle's in, the boots got loose again(it's brand new). Took the car back, the tech now say the lower control arm is a little bit loose(it's not broken or bended, but a little loose). He said this has caused the axle to fail. So Now I have to replace the lower control arm as well. Can anyone tell me if the loose lower control arm can cause the axle to fail(within a few days of operation)? Thanks