be unlike to的使用方法对吗

Jim is very unlike to his brothers.

有人说这里的 to 应该去掉，这是为何？

unlike 可以作介词，意思是“不像”、“与 ...... 不同”，如：

She's  very unlike her mother. 她非常不像她妈妈。（《朗文英汉双解词典》p.1481）

所以，下面句子中的 to 应该去掉：

Jim is very unlike to his brothers.