I think it's important to preserve the integrity of the Venus surface for when we have substantially mined its atmosphere. That's when Venus could begin to present an opportunity for limited human habitability. We'd then have to use mirrors to redistribute sunlight evenly and boundedly across its slowly-rotating lit and dark sides. We could try to create an artificial ozone layer to block UV. We'd still have to neutralize the residual corrosive substance (unreacted chlorine, sulfur, fluorine) using water and alkali chemistry and scrubbers. The raw materials for alkali would come from the planet itself. Water would have to be imported from the space economy, probably from asteroids, also as hydrogen from Neptune's atmosphere using fusion powered lift.