So since ancestry.com is a scam, and it cost tons of money to get real results
Ancestry.com isn't a scam, but it doesn't give you the answers on a plate. Sometimes they have special offers.
How Polish am I? I figure if I visited Poland, people might think I blend in well if I have Polish traits.
There aren't any traits as such, except perhaps those characteristic of Central and Eastern Europe as a whole. It's more complicated than that.
I can tell you guys are far more patriotic than US citizens. I don't know your view on the nationalists in our country,
Don't confuse nationalism with patriotism - they are two very different things. And never trust anyone who describes themselves as either.
I asked my cousins about him and they tell me he's trash and to avoid him.
Trust your own judgement rather than your cousins'. They might actually be very nice people - alcoholics often are, and poverty is nothing to be ashamed about.