I'm very torn over this. And I say this as a company owner and employer who is extremely familiar with the issue.
Oversimplifying for brevity, I am seeing three cases in play as businesses respond to the Affordable Care Act:
(1) Businesses which do not have to cut their part-timers' hours in order to make a killing but which do so anyway, hiding behind the "bad" health care law changes as a flimsy excuse. I see this a lot and know a handful of these types of owners. VERY sad to watch that kind of disgusting contempt for their own employees.
(2) Businesses with relatively thin net profits which, by virtue of employing hundreds or thousands of part-timers, face the terrible choice between either really large increases in benefits costs or devastating cuts to hours as an end-run around the law.
(3) A very wide range of businesses which are in between the first two, having neither the sociopathic leadership of (1) nor the genuinely impossible-seeming choice of (2). (Size is another variable I won't even get into.) For them it is not a question of survival, nor necessarily even a case of competitiveness, but rather a question of ownership's take at the end of the day. In my opinion it remains to be seen how this group will behave, but unfortunately it is not a stable equilibrium... particularly in the realm of public corporations.
I strongly suspect that non-Disney amusement parks generally fall into case (2).
In a group of park enthusiasts it is natural and easy to focus on this like a laser. It is one part of the picture. It is not by any stretch of the imagination the entire picture.
All of this stands against the backdrop of the alternative in the absence of any such law. That alternative, particularly in the long term, is terrifying. Nobody from either side of the aisle, nor from the middle, has proposed anything at all that offers both a realistic chance of becoming law and a better solution to the worst case scenario of doing nothing.
So by all means, follow the advice of gigantic one-word posts urging you to VOTE. But if your vote is to be influenced by health care legislation, make sure you're fully familiar with the total picture first, and the incredibly complex reality of a problem which has no truly "good" solution.
Edit: I note that the posts I just mentioned at the end of this post have disappeared. Apologies for the reactive political bent at the end here. I'll happily remove it if it saves the rest of the post!