That Andrew Todd remark is pretty stupid. First off, what Rey wanted most was not "to not be alone" but to know her place. She literally lives alone on Jakku. What fuels her desire through the films isn't, "I don't want to be alone anymore," it's "I want to know where I belong/who I am."
Secondly, how anyone interprets that she's "alone" in the end is beyond me. She's not alone, not anymore. She's found her place. She has her friends. She has her (new) family. Simply because Luke and Leia are not with her does not mean she's "alone" in a thematic sense. She's very much in a significantly better place than when she left Jakku. Somehow roping "crushing isolationism" into it reeks as another "gotcha, hot-take" snipe at JJ for no reason.