In Cape Town there is a mosque called the 'open mosque'.

Answer

There is not much to comment on this kuffaar temple. The terms, 'mosque' and 'jumuah khutbah' are deceptively used. Those connected with this kuffaar temple are all kuffaar. There are other groups elsewhere in the world who also employ Islamic terminology to deceive ignorant Muslims. This is a satanic trick of kuffaar missionaries to undermine Islam and Muslims.

However, the deception of this particular kuffaar temple is so conspicuous and so stupid, that it cannot deceive any Muslim in whose heart there is a grain of Imaan. The deception is too stupid to succeed in attracting converts. Those who may have earlier masqueraded as Muslims were in reality born kuffaar. Whilst they will technically be branded murtad, they were in reality kuffaar from the inception of their appearance on earth. Allah Ta'ala had ordained them to be among the eternal inmates of Hell.