We should not, in this case, have these safe spaces. People must learn to respect others, even if their beliefs do not match those of others. A person may disagree with someone, but denying someone the right to express their opinion, to say what they grew up with, and not allowing them to have a say in anything is not ethically right. People's education should not determine whether they have the right to express their opinion or not. Everyone has a say in this world and no one should be silenced, even if their beliefs do not match traditional ones. One could argue that their beliefs are not rational, but if a person is raised with a certain set of beliefs, is reasonable in their arguments, and listens to your beliefs, that person has every right to express their beliefs. People need to be respected and treating them with intolerance is not the morally right way to do it. According to Kantianism, safe spaces are not a good thing to implement