I would not stop you but go further and encourage you to do so provided all you do is write or speak but not act. That's where I might disagree depending on what you mean by "stop". If you mean "prevent from saying" then I would want to see solid proof that the statement was likely to cause harm. "I don't think that Quakers should be allowed to speak" is not the same as "I call on all good Christians to kill Quakers" (I hope that's a sufficiently silly example not to cause offence). That's where I do disagree. To me all opinions must be accepted as valid or we're on the slippery slope that Martin Niemöller warns us of. We're all entitled to oppose those opinions and the examples you give are opinions I oppose vehemently.