There are several synonyms for the phrase "valid points." One alternative option could be "sound arguments," which implies a solid foundation for the points made. Another synonym could be "justified observations," emphasizing the credibility of the points being made. "Persuasive evidence" is another way to describe points that are well-argued and backed up with convincing information. Similarly, "reasonable assertions" suggests that the points are logical and rational. "Compelling logic" implies a strong and convincing argument, while "credible viewpoints" focuses on the reliability of the person or source making the points. Regardless of the synonym used, the main idea is that the points being made are convincing and well-supported.