Tubular upper control arms Issue

I know its the wrong bump stop. The factory one missed completely. This picture is taken at ride height. The control arm hits while turning at ride height.
So my question was how is it possible that the wrong bump stop caused the issue.
I'm thinking the brake caliper being on the back was the issue the whole time because the control arm looks to have plenty of room on the front of the rotor.
But I've been wrong before.