What is Jake's opinion on the foreigners

Jake pretty much distrusts them,

They ain`t the same, Jimmy,` he kept saying in a hurt tone. `These foreigners ain`t the same. You can`t trust `em to be fair. It`s dirty to kick a feller. You heard how the women turned on you-- and after all we went through on account of `em last winter! They ain`t to be trusted. I don`t want to see you get too thick with any of `em.` (Chapter 18)