No, you can 100% ignore the opinions of ignorant and delusional people. I will also not be delusional, in saying to a degree—we do care about certain peoples opinions. Also, I think it’s healthy to have awareness of peoples opinions (to clarify, of people who are not delusional), and be able to decipher if their opinion holds any truth before discarding it. I believe in life, every person goes on a journey of seeking the truth and I believe you can’t get their on your own.