I'm pretty sure intolerance isn't just a person who is unable to change their views..
My question is what is considered to be intolerance? And where does the line between respecting their opinion / actions no matter what to voicing your opinion / retaliating?
Going back to the OP:
We shouldn't tolerate bad ideas if they are used (or exist) to do harm to others, this includes charging people for naivety. We shouldn't tolerate homeopathy at all. It's disgusting. People that sell this stuff are looked up to as a person of authority (or at least a person that knows about medicine) to the ignorant believers and they abuse this position to make money. If that isn't immoral enough, they promote the use of it as medicine. Imagine a mother asking Mr Homeopathy (who has little to no knowledge in medicine) why her son has a fever and what to do about it being told:
http://www.homeopathyworld.com/ said:
Use your Homeopathy Guide in your kit to find a remedy that fits the whole symptom picture, including the fever
That kid could die.
We shouldn't tolerate priests who preach to put all their trust in God for health related issues for the same reason (minus the money.. although i'm sure they get enough from other immoral means).. There have been several cases in the past couple years where children have died after the parent refused the advice and treatment of doctors and relied on praying instead.
We shouldn't tolerate any culture or practised ideology that treat women as lesser people.. This allows men to treat their wives how they wish and there is nothing they can do about it. Women can't even divorce their husband without his permission.
Psychics and mediums should all be put to the test before being allowed to charge people for their "services".. But imo.. They shouldn't be tolerated as none of them would pass the test.. Again, it's exploiting people and charging them for their ignorance.
Religion having a say in political matters should not be tolerated. Creationism being taught in science lessons should not be tolerated.
We should have the right to stop "bad ideas". Because bad ideas lead to bad actions / outcomes. No matter how seemingly insignificant, they're still bad.
We should have the right to destroy "bad ideas" as bad ideas are, well, bad

They are damaging in one way or another.