Saying that the more water you drink the more you will pee is agreeing with my point, not yours. The more alcohol you put into your system, the more drunk you will get. And being more drunk does not improve your motor skills. Drinking does not improve the motor skills of teetotalers and it does not improve the motor skills of lushes. Drinking certainly has a lesser effect on someone with greater tolerance, but the effects do not move in the opposite direction from someone with greater tolerance. The claim that you can improve your motor skills by drinking is every bit as false as the claim that you can cause a balloon to float by filling it with rocks.
What do you know about alcohol withdrawal syndromes, why they occur, or depressant vs. anti-depressant brain physiology? For chronic drinkers with tolerance, having a few drinks will improve their motor functions. Unless you think having shakes, dizziness, and delirium are better alternatives.