Technically, it doesn't matter if you are outside the USA or not
Yes it does.
The same way as the European GDPR, you are liable no matter where your business is installed.
No you are not.
You cannot be expected to follow the laws of a country in which you do not reside. What this means concretely is the EU or California can seek a judgement in their courts against you but they will be unable to enforce that judgement, unless your country of residence has some sort of an agreement with them. Now if you are like Google or Facebook and have a business entity established in one of these territories then that is different, that business entity must abide by the laws.
It is worth noting that there is nothing preventing the authorities in these territories from trying to go after you legally, even with knowledge that they have no legal grounds to do so. The problem for you is that just by them trying to seek judgement against you will be forced to incur significant legal expense to defend yourself, and that in and of itself (as a small business or individual) could be sufficient to either close you down or force you to comply with their wishes. It is unlikely that they would do such a thing for minor infringements, but if you egregiously start breaking their laws then it may be a whole other issue.
Also consider that they do not have to come after you directly, they can go after "service providers" or "revenue providers" that you depend on, such as your cloud provider, registrar, Google, AdSense etc...
In conclusion not residing in the EU or California does make a difference, but it does not shield you completely. As to the question "what should I do?" only you can answer that question as it really depends on your business model and the level of risk you are willing to take.