First, why on earth did they need a two thirds majority for passing? They are just repealing a law. Yeah, they would probably get vetoed by the President and need it to override the veto, but as of right now why wouldn't they merely have to have majority support as all laws are since the law needs to be passed before the President can exercise his descretion to veto it.
Second, why on earth are you people happy that the Federal Government is telling you what kind of light bulb you can buy? Do you have no self respect and desire for liberty anymore?