Do you think Karna followed his Dharma.....

I meant, do you think Karna followed his Dharma as a kshatriya, a brother, a son, and a father by joining Duryodhana's side? Was it or was it not against his Dharma?

karna didn't know that he was a kshatriya when he joined duryodhan side and when he knew that he was a kshatriya, brothers towards pandavas, and son of kunti he couldn't leave duryodhan's side because he was too far greatly indebted towards duryodhan for all the honor and glory that he had received. karna did what he did because he thought when he was nobody only duryodhan was the one who honor him among the kshatriyas, even the pandavas did not honor him the way duryodhan did and he could not leave duryodhan during his time of needs especially when he knew that duryodhan had high hopes from his friend karna.