From an interview:
There is a growing movement in Israel of frum Jews ascending Har Habyit after going to the mikveh. What’s your opinion on this movement?
The Rabbanut said you’re not allowed to go on the Har Habayit. Now, the majority of the Jews in Eretz Yisrael are not shomrei mitzvos and are not really interested in what the Rabbanut says. In fact, they want to do away with the Rabbanut because it gives them problems – a kohen can’t marry a grushah, he can’t marry a mamzeres, he can’t intermarry, etc. In Bnei Brak and Meah Shearim, they also couldn’t care less what the Rabbanut says. So you’re left only with the Modern Orthodox, the Dati Leumi, and now they too are ignoring the Rabbanut by going on the Har Habayit.
So the government will do away with the whole Rabbanut. What do you need it for? In Bnei Brak they don’t hold from them, in Meah Shearim they don’t hold from them, the overwhelming majority are secular, and the Dati Leumi are also not listening.
How do you go on the Har Habayis? We’re going to be responsible for the demise of the Rabbanut. It will be a disaster. As bad as the situation is now, it’s going to be worse if there’s no Rabbanut.
Haven’t you said in the past that one may, in theory, walk on certain parts of Har Habayis?
Yes, but if the Rabbanut said you shouldn’t go, you have to listen to what they say. If they say a kula and you want to be machmir, gesunterheit. But to be meikel against them I think is not right.
See it here.