You're right. It's a tyranny issue.
Just like preventing murder and the pro-life community are tyrannical.
It's restricting one person's rights ONLY where they infringe upon another person's. Our laws do this all the time.
You can smoke in your house, fine. Preventing you from smoking in a restaurant is not a tyrannical issue at all, but a health issue for those who don't wish to smoke. Our county just went smoke-free in all restaurants and it is a great thing. NO more do I leave smelling like crap because morons want to light up in public. It's a great thing indeed.