I did wonder if we suddenly could produce loads of room temperature super conductors if eventually we’d start to affect earth’s magnetic field; I learned that s

I did wonder if we suddenly could produce loads of room temperature super conductors if eventually we’d start to affect earth’s magnetic field; I learned that super conductors basically force magnetic fields around them and do not allow them to pass through. If they started to be used everywhere from power lines to train lines to computer chips we might start to cause unintended consequences. Does anyone have an idea if this is a real concern?