If polygamy is illegal, is it risky to be in a polyamorous relationship?

Hello! I have a very important question. How do others not get arrested for being polygamous, it is to my understanding that it is a felony, therefore I am scared to go into a relationship with more than one person. Please help!

It is NOT illegal to be in a relationship with more than one person! Polyamory and polygamy are not the same thing.

Polygamy specifically means being legally married to more than one person. It is illegal to go to the courthouse and fill out official documents claiming to be married to one person when you are already legally married to another person. You would only be breaking the law if you got the legal system involved by doing things like filing taxes as if you were married, applying for a marriage license, claiming to be married on official paperwork, etc.

Polyamory is simply being in a relationship with more than one person, which is not illegal. You will not get in legal trouble for being in a polyamorous relationship. There are a lot of legal resources out there for polyamorous individuals seeking to navigate things like hospital visitation, child custody, health insurance, and tax filing: read more about them here and here.

Do you advocate polyadvocy?

Do you advocate polyadvocy?

I have genuinely no idea what that means. It returns zero Google results.

If you mean "polyamory advocacy" in the sense of fighting for laws and other policy changes regarding healthcare, finances, insurance, child custody, adoption, hospital visitation, employment, etc. that serve the needs of polyamorous people and families, absolutely.

If you mean evangelizing polyamory as a relationship style that everyone should adopt, or trying to convince or cajole people into polyamory, absolutely not. There's a time and a place for "hey, there's this thing, it might resonate with you, here's some info about it!" - people deserve access to information that might help them understand themselves and be intentional and healthy about their relationships - but that's where it should end. 

If you mean something else, then I can't answer your question, because I don't understand it.