Worryingly, some SSPX laity speak favourably of the TFP though probably not aware of the full facts of that outfit.
To clarify and expand to what I mean, I recall speaking a woman who attends the SSPX at a pro-life event. She thought the TFP excellent because they stand up with signs "honk if you are pro-life", "honk if you believe marriage is between man and woman etc etc".
The danger with these people is next thing they will think Benedict XVI is a friend of Tradition because he encourages kneeling whilst receiving the host etc etc. A priest is more traditional if the vestments seem traditional etc etc
It's necessary to educate people. I had to write to a pro-life lobby group as they were linking to the TFP. I sent the single issue lobby group the truth about the TFP. The lady was genuinely unaware. She isn't a Trad so we shouldn't be harsh on her.
SSPX laity defending the TFP is another matter. Naturally, you might expect it from the Institute of Christ the King and others on the veneer of Tradition.
It's one thing to assist on a pro-life picket, a conference etc etc but who influences who is they key issue. TFP influence should and will be resisted.We don't actually need them.