Divrei HaYamim: Find me what the Issur is. None of the Halachic Rishonim bring down that interpretation of Ma’aseh Eretz Mitzrayim, as far as I know. And having an agenda is still Hana’as Atzman. They don’t want to destroy religion. They just want religion to be “nice” to them. Now, the only way to accomplish that is by destroying religion. But that’s a means, not an end, which is exactly what Hana’as Atzman means.
And an anti-Torah “Jewish” movement is Apikorsus. Goyim are not Metzuvim on things like Mach’chish Magideha and similar forms of Apikorsus. That’s why we have Torah Sheba’al Peh and they don’t.