Thanks for enumerating the counter points. I’m immediately turned off by his vocal style, but I can look past that long enough to evaluate the content.

I have two big issues with it:

• His assertions lack references to supporting evidence
• his political allegiance gives me pause

I will check out his content more before I write him off.

It appears the android client he used is Cheogram, which I use. It is forked from Conversations, and is excellent. JMP.CHAT maintains it, and pretty much supports all of the xmpp standards. Including gateways to phone PBX, SMS, and Matrix.

They and sopranica offer fully compliant servers, including self hosting.