I'm sure everyone has their own place, but for me it was in general tiwtter, and the final straw was this:

https://twitter.com/elonmusk/status/1519735033950470144

Given the presidency of Trump, I don't see how anyone in good faith can say the right hasn't moved -- unless of course you believe the right was always as racist as Trump, the only difference is he said it out loud.

He claims to be "balanced", but I haven't heard him say anything negative about the right, or far-right, except generic statements.