I don’t understand why so many people miss that. It is FAR from dishonoring or disrespecting Mary to admit what Scripture clearly teaches - ALL have sinned and fall short of the glory of God.
Treating matrimony and motherhood as if the very notion of marital relations between herself and her lawful husband Joseph was somehow sinful, viewing it as fornication I suppose, dishonors Mary. If she actually were sinless, marital relations with her husband would not have made a sinner of her. It’s all just so convoluted.