Whether the person's statement was considered rude or not depends on the context and the tone in which it was said. People have different beliefs and perspectives, and discussions about religion can be sensitive topics.
If the person stated their view respectfully and without intending to offend or belittle your beliefs, it might not be considered rude. They might have been expressing their own perspective or trying to convey that they don't personally hold a belief in God.
However, if the person made the statement in a dismissive or mocking manner, it could be seen as rude or disrespectful. Comments that demean or invalidate someone else's deeply held beliefs are generally not conducive to productive conversations.
In discussions about religion or other sensitive topics, it's essential to maintain mutual respect and open-mindedness. People have diverse beliefs, and while disagreements are natural, it's crucial to approach the conversation with empathy and understanding. If you feel offended or uncomfortable with someone's remarks, it's okay to express how their words made you feel and ask for a more respectful tone in future conversations.
Remember that healthy dialogue and sharing different viewpoints can lead to mutual growth and learning, but it's crucial to do so in a considerate and compassionate manner.