What was the rebbes Shita about going up to har habayis?
Yes,This is in reference to the guest that came to 770 yesterday
Absolutely forbidden.
Whoever invited him to speak is highly misguided IMHO.
People bring the precedent of Avner Shaki, but fail to see the difference. Shaki fought against the גזירה of מיהו יהודי (despite being part of the NRP who were instrumental in allowing the word כהלכה to be omitted).
While we speak about שלימות העם, שלימות התורה ושלימות הארץ, Ben Gvir might be screaming שלימות הארץ while desecrating שלימות התורה.