"Look Morrie as foolishly naive" doesn't sound right. It should be "Look AT Morrie as foolishly naive" as you correctly wrote in your first sentence.
"look at someone as adjective/noun" is a common phrase similar to "view/consider/regard someone as ...". "look at" is just more informal.
You could say something like "Many look at him as too opinionated.", "Some were enthusiastic about Malcolm X while others looked at him as too radical.", or "I look at him as a very capable guy."
Here's an example (with "view") from Huffpost.com:
- About half viewed the Republicans as too extreme in 2015, but that number has receded in recent years, even as President Donald Trump has scored considerably worse on the same metric.