He's married to an Israeli Orthodox Jew.
No, I disagree. I think we have absolute mountains of evidence (his literal hundreds-thousands of hours talking about it count too,) pointing towards the fact that he's a practicing jew are enough to say that the issue is settled until you can provide evidence to the contrary.
Wears the outfit, takes the days off, talks about it consistently, molds his political and moral views around it, visits important jewish sites, parents, sister and wife are all practicing orthodox jews.
It would be far more weird and unbelievable if he WASN'T a practicing jew. Claiming otherwise is nonsense. Claiming you don't know is also nonsense. It's right there in front of you, and there's no evidence the other way.
"My opinion is that we aren't really sure if this is a duck. Sure, it hangs with other ducks, it was given birth by ducks, it's mated with a duck, it looks like a duck, it quacks, flies, and it has feathers and webbed feet, but we can't be sure it's REALLY a duck"
That's what this argument sounds like.