Final answer:
Critics argue that single-issue groups may lead to a narrow focus on specific issues, neglecting national agenda. Emotional appeals, rather than logical solutions, are often used by these groups. Additionally, critics point out that groups with more financial resources hold more power and influence.
Step-by-step explanation:
Critics of single-issue groups argue that these groups tend to focus solely on one narrow issue, which can result in policy makers overlooking the larger picture and agenda of national issues. They also criticize these groups for relying heavily on emotional appeals rather than logical or reason-based solutions to social problems. Additionally, critics claim that the power and influence of interest groups are often skewed towards those with more financial resources, which can give an unfair advantage to large corporations.