@qwerty613 I was asked to provide one Rov, I provided the words of one Rov.
Rav Feldman SHLITA is simply one of the more outspoken gedolim against certain Chabad beliefs and practices in the sense that he publicly condemns things that most other Rabbonim have on written record as being saying. And he’s not some small fringe Rov, he’s the Rosh Yeshiva of one of the biggest, oldest, and most important Yeshivos in the US, and the head of the Moetzes. Furthermore, if you read his letter, he absolutely says that Meshichistim are dangerous and a huge problem.