Some might say that presumptuous would most certainly apply to one who
would decide for others how they should FEEL. Personal beliefs are just that.
And the fact that it was used as it was is fact; it is still the symbol for that movement. No one's opinion alters that fact. You are free to have an opinion on whether you wish to wear it, and that is what the OP asked. If you haven't paid attention in class, and thereby are poorly informed, it is not the fault of those who did pay attention. And in any case it is dicey to speak in such a manner on such an emotionally charged issue. Having myself been accused of disrespectful posts, I agree that words can be taken to mean something unintended.

I don't have a dog in this hunt. Ancestors did. Some died over this issue.
At least one was enslaved because of his support. Whether they were right
or wrong is not the issue here, but it might well be inappropriate to belittle their commitment. I wasn't there, and I don't know why they chose their path. I have a right to agree or disagree with their choices, I don't have the right to belittle the value of their effort or their lives. My opinion is that I
have an obligation to honor their effort to create a society they hoped would be better for their families. If you had ancestors who came here from anywhere in the British Isles, this issue most certainly has had an effect on how you live your life today.

This is why history is important. Some aspects of this same issue are once more before us in society, and would be helpful if we were better acquainted with how it has been tried before. The political aspects are not going to be
solved here, nor will the religious. Allowing someone to say "This is how I do or do not apply this symbol in my life and this is why" does not seem to me to be too much to ask.