Analyzing the Claim in a Social Media Argument

Read the following argument:

'Social media platforms have revolutionized the way we communicate, providing new avenues for personal expression and connection. Critics argue that the rise of these platforms contributes to increased isolation and mental health issues among users. However, when used responsibly, social media can enhance relationships by enabling people to stay in touch despite geographical barriers.'

Based on this argument, what is the primary claim made by the author?