Religious Jews believe in Jesus as a person that existed. Opinions on him range from very negative to very positive, it’s complex and varied - https://en.wikipedia.org/wiki/Jewish_views_on_Jesus

Possible this guy’s family has a very positive view of Jesus.

Neat, but like others have mentioned, it’s proprietary.

If you want an open source alternative, I believe the best option currently is Open Voice OS - which arose from the ashes of Mycroft.

https://www.openvoiceos.org/
https://github.com/openVoiceOS/

I don’t understand your comment, the war started in 1939, Great Britain joined the war 3 days after Hitler invaded Poland. The famine occured in 1943.

Your maths is terrible?