This is a false dichotomy. The root core of the issue should be addressed. However, that would require an act of Congress, whereas federal student loan forgiveness can be accomplished immediately via executive action. This is why people are calling for it now, because it can be done right now. Also, the President promised to do so multiple times during his campaign.
> Universities can charge more, and students can continue to take out larger loans
Universities are already charging more, and students are continuing to take out larger loans despite the lack of forgiveness.