We don’t know. There is no solid evidence for or against it. Statistically speaking there could be. The universe is a BIG place after all. Then again, the chances of life successfully forming, especially making it to any sentient level, are exceedingly small.

The important question is not if other life exist in the universe. The important question is if it matters. Personally, I think it doesn’t matter at all. Unless there is another space faring civilization that has a way to directly reach us or contact us in any meaningful way, who cares?

It isn’t worth the argument imo. Agree to disagree and move on.