If your complexion is dark, and you are not a blond blue eyed person, the local Poles will not want you to sit next to you in a bus, they will get up if you sit
It's not their fault, they are afraid of the unknown. It's not such common to see a color-skinned person in Poland (maybe except for university areas of big cities).
But pity them, many of them have the mindset of those from the gutter who may hold worthless degrees from univerisities who cannot get a job.
I am ashamed of them... But try to understand that. White person is something which you know, see everywhere. Black or Asian - it's the unknown world, which you can see only on TV, mostly in American (or Asian) movies (American movies which don't depict black people as angels). Even for me, subconsciously, the white people are more trustworthy, although I know it has nothing to do with the color of the skin. It's difficult to fight with that. I don't want to say this, but it looks like racism is in our Polish blood and it will take generations to change it.
About the grocery stores and English, try to learn some basic Polish phrases. I am sure they will appreciate that, even if you make mistakes. We all know that Polish is difficult for foreigners.
By the way, Poland has the lousiest customer service! Poland is privileged to be in the EU.
Speak about concrete things, I don't get what you mean. If you mean ubiquities beaurocracy, customer service in shops, mobile phone providers etc. - is it the fault of us, Poles? No, it annoys us equally well! About the beaurocracy, I have heard that it isn't better in France. Actually after almost a year of stay in Germany, I see many things that work better in Poland and many things that work equally bad in Germany, even though Poles usually think they work better in Germany.
They are a madness unto themselves trying to revive a dead system of the glories of a bygone era of defeated monarchs
What do you mean? That freak Janusz Korwin-Mikke? Noone takes his idea seriously, he is more like a clown. And his political party is just a machine to extract money from the governmental election funds.
Poland has the highest suicide and depression rate in the EU. Don't expect Poles to smile, much like their Russian bretheren they still have serious trust issues.
It must have more to do with the geographical location. It's always so that the southern-European people are most happy. Maybe it depends on the amount of sun... But there is such a dependency.
Poles hate the Germans, this is a fact, if you have a German surname be aware.
Just because of the history. A country which has always tried to conquer Poland, and even managed a few times. Not to mention that a vast part of the western Poland (and north-eastern as well) was for centuries in German hands.
And did terrible things during the WW2. Actually started the WW2, which, even leaving the whole holocaust behind, was a terrible thing.
1. Try to see the positive things!
2. Try to understand.
Your best option if Poland doesn't please you (and it probably won't) would be to return to the country you arrived from.
That's the point. If you feel better if your home country, just return there.