Option B is to not enforce those sections which are not constitutional. That would be Bush's style. Brilliant compromise.
But then the next President will be free to enforce it. Not good, especially if it is the Hildebeast.
Not at all. Even if never actually enforced this would be a nasty "chiller" statute. Actually, not enforcing it makes it worse since it's impossible to challenge a statute that's never enforced.
It's important to recognize that this statute wouldn't have to be enforced to have its intended effect: the severe curtailment of political speech by 'unapproved' groups. After all, even if nobody has 'yet' been prosecuted under this abomination, how many broadcast stations or newspapers would be willing to risk running an ad which could get them in legal trouble if the government changed its mind about enforcing this garbage?
If the President signs this garbage, I will seek to get him unelected. Arresting congresscritters who voted for it after having admitted that it was unconstitutional would probably be a bit too controversial, but would be a far better action to uphold the Constitution.