The WSJ has always been bad (ie liberal) on immigration, infamously calling for open borders for years and helping to sabotage the mid 90s effort to reduce immigration. So you can’t blame Gigot for the Journals leftism on immigration; he’s just continuing the tradition.
I agree though with Levin’s assessment of Gigot.
I canceled my subscription to the WSJ after 30 years, when the published a picture of Romney the day before the election showing him in a sweat shirt with the lettering blocked such that it said “loser”.