If they uphold the entire thing, there will be open rebellion in the streets.
Wait, and watch.
I don't see conservatives rioting. If the founders were here they would have descended upon the capital in an armed mob a while ago and put every person who voted for Obamacare on trial for treason, followed by a swift execution. But I don't see that happening either. I expect we will hunker down in our homes and refuse to obey in a general tax revolt. If 1% of households participate that is 1 million people to track down and prosecute. The response could range from not paying at all, to paying only State, to paying your entire bill and just refusing to pay the $95 fine ( this year anyway) and "accidentally" leaving the new section blank. 4000 new agents to go after 1 million people who will not owe because they DO have insurance (at least I don't plan to try to do without it) and they just didn't prove it. Sounds like an Obama wasteful boondoggle to me. We would need some big names to call for it and take the hit - Rush, Beck, Levin, Malkin, Coulter etc. In some states the legislatures may even pass a bill to prevent the Fed from prosecuting individuals in their State ( a first move towards succession) There might also be a DOS attack on the IRS where fake forms are mailed in, increasing the load on the system.
And then you sit back and wait for the collapse. What SCOTUS decides is irrelevant. It will be repealed by the reality that Obamacare adds another $15-$20 Trillion in unfunded liabilities - to our already large pile of $50-80 Trillion. It ensures a "crisis" of Great Depression magnitude which I am sure thy try to plan to leverage into a Newer Deal. How FDR got away with it I will never know. Maybe because History was not yet clear on the subject of Socialism/Communism/Fascism and their effects. People like us didn't KNOW what would happen. Now we do, and hopefully that gets us off our butts and into action after the collapse- because after the collapse they will have to make at a very visible and very intrusive police state.
Of course, that may not happen either (though I don't see how it doesn't) . In the end the only rational response in any probable scenario will probably be going Galt and prepping . Produce as much food and fuel as you can yourself. No money can go into a bank. Your transactions need to be bullion, cash or barter. (Obamacare gives the Fed the right to withdraw right from your account- garnish employer wages? Court Hearings? Nah. We will just take it and let you fight to get it back - that may be how they respond to a revolt like the above.. though it would be dangerous to - because we would pull all of our money overnight.. and with a system that is leveraged as much as 50:1 , pulling out 100K is pulling out 5 million. Of course, they WANT a crisis...so )
Form a C-corporation, and take in all fiat payments through it, and then pay a salary out in gold and silver eagles to yourself (or not- that might garner unwanted attention if they figure it out) or just pay yourself a salary that makes you "poor" so you will qualify for food stamps, subsidized insurance via the Obamacare pools, etc etc. ( Yes, I plan to not only leave the system but attempt to put additional strain on it - yes I understand that may be perceived as immoral) Your money is protected in the corporation account, (that is why is must be a Corp-C with officers and full reporting requirements - it makes the corporation another "person" - and Liberals hates that) You can either be a cheater or a sucker in this society, and they will hunt down a persecute the grudger - so you must look like both. Your C-Corp is the cheater, and we know Obama likes them- as they like anyone who they think is playing and invested in their game. (Your C-Corp should probably give to some lefty cause somewhere, just to be safe) and your personal account is the sucker - the poor wage slave that hates capitalism.
As long as you fit their narrative they will probably leave you alone - which, in the end, is all we want.