If voicing your reasonable, substantiated concerns about a person’s reliability to fairly and equally safeguard the rights of American citizens is cause to be silenced and dismissed, we’ve got big problems.
We need to ask ourselves why engaging in a pattern of racist (etc) oppression is not grounds for immediate dismissal, but pointing out such a pattern is.
We need to ask ourselves why, in an established tradition of reading letters into the record, a woman was not allowed to do so, yet men read from the same letter later that same day and this was considered perfectly fine.