Just chiming in to look up this very topic; I was interested in getting Kagi until I saw it used Grok.
It's quite simple, the fascist bigot genocidal fiend's technology should be ousted from public use; no matter how "good the product or service is". Let it die.
Fully uninterested in using Kagi until it takes a stance. Personally I'm hoping to distance myself from as much as possible - and though many of these AI choices are problematic, even Grok as an option is not worth even being associated with.
I certainly wouldn't tell people to go check it out if I knew they'd hover over "AI models we use: the one under control of [insert Elon's long list of horrendous, detailed, tracked, disgusting statements(not to mention the social security thing - this doesn't align with anti-surveillance)]".