Did you replace folks' smoke detector batteries for them?
The way I found to get around this prejudice was to go to church most Sundays and walk around with a sling bag full of 9V batteries and knock on doors to offer to maintain smoke detectors. (It probably didn't hurt that I was also good for bumming cigarettes off of and slowing down to have a chat.)
YMMV, but showing up and doing work was apparently what my neighbors in East St. Louis and Atlanta wanted.
It is not like that where I live.
The first generation of immigrants have trouble, natural enough. But are very keen that their children do better.
As for racism: Most racism here is systemic, from the state. There is casual ignorant racism, of course, but little hate.
What a mess has been made of your country. You should work to fix it.
It took us a lot of work to get here, and we have a long way to go. But I cannot imagine living in a society such as you describe.