Technically yes, but as I've been trying to get across; violating the conservation of momentum isn't just 'new physics' it shakes the whole foundation of modern

Technically yes, but as I've been trying to get across; violating the conservation of momentum isn't just 'new physics' it shakes the whole foundation of modern physics. The very definition of momentum ensures it is conserved by the (classical) equations of motion, to be otherwise is patently absurd.