> (a) the offering of goods or services, irrespective of whether a payment of the data subject is required, to such data subjects in the Union; or
> (b) the monitoring of their behaviour as far as their behaviour takes place within the Union
Did I quote the correct section? Doesn't collecting all the analytics fall under section B? I'm not a lawyer of course, but it seems pretty reasonable to me that if you have interest in the EU market, blocking them is easier than figuring out if GDPR applies to you or not.
Or you could just not spy on your users of course, but I guess I'm too pessimistic to see that as an option a company would choose.
You need to not sell goods and services to EU citizens for the law to not be in effect.
Even if said citizens are in the US. You don't cease being a EU citizen when you're traveling.