TXT can't be banned. There are several RFCs that require TXT records, such as DKIM configuration, DMARC configuration, and it is extensively used for verification by things like AWS SES, Microsoft Office, and all kinds of things. It's built into many standards and used by all kinds of other entities for all kinds of perfectly legitimate things.

yes, but in that cases we are on the "this (should) involve a criminal investigation" level not on a "Google Safe Search" doesn't trust you level