I gave you my source.
That doesn't count I'm afraid. The following quote from you is presented as a statement of fact, not an opinion.
Many Poles don't trust America
When you state something as an opinion you are free to say anything you like but when you make a factual statement you have to support it with factual evidence. If it were an opinion, you would say 'I believe/in my opinion/from my observations, many Poles don't trust America' and that would be acceptable.
Now take note of my response to your original statement:
I would say the opposite is equally true.
I qualified my statement with 'I would say'. This makes it an opinion and not a fact. If I merely said 'the opposite is equally true' then that would be a statement of fact and I would have to back it up with evidence, which I did in any case because what I stated as an opinion, is in fact true, whereas what you stated is not.
They're getting trained to work on the new factory line that's going to be set up in the USA
Americans don't come to Poland to be trained in factory work. There is no technology available in Poland that Americans dont have in their own country and Polish factories rarely set up business in the USA.
One of our guys asked out loud "Who are those refugees?"
That didn't happen for two reasons. Firstly because there were no Americans and secondly because Poles are not ignorant yobs and there are very few twelve year old Polish boys working in Polish factories.
Poles think that Americans are dumb, undereducated and usually obese which makes them look and act funny.
Making statements of fact again.................No they don't, but if you bothered to read my link, you would find that a significant number of Poles surveyed believe that American people are more likely to be greedy, arrogant and violent whilst at the same time view them as hard working, optimistic and tolerant. So you see, life is not that simple. By the way, what you should have said is 'the other boys in my class think that Americans are...........'
Interestingly the survey found that 57% of Americans themselves agreed that about the greed aspect. How honest of them.