I was replying specifically to your comment...

"It's actually quite trivial to detect most VPN providers. There's publicly available IP lists..."

None of that has anything with what I'm suggesting, or why I suggested it.

I've explained the rationale in other comments, but this is an action of protest, not a technical response or workaround to the law.

If Utah passed the stupid law, you have to inconvenience Utah voters, and to do that, websites should block all Utah IP addresses. Making clear to their users that due to the new regulatory framework, they're no longer doing business in Utah.

If that upsets people in Utah, they can reach out to their representatives to ask why they voted to ruin the internet in Utah.