It depends, if the morals cause more harm than they prevent, then no, the people espousing those "morals" don't deserve respect. They should be treated as naive which is what they are. Also, this is why we have the phrase, "virtual signaling" which specifically means a "moral" which causes more harm than good and seems to exist mostly to make the speaker seem more ethical than they actually are. Ignorance isn't a virtue and it shouldn't be treated as such.