Plenty of assumptions here unsupported by valid empirical evidence. Like the one above…Black people “tipping less, if at all” is an ignorant, racist statement. Also, ask any server about how White Europeans tip and they’ll laugh at that one.
I could go on, but you are belief-driven and probably have little to no meaningful social contact with those darker than you. You have made claims with no reliable evidence to support them. Your beliefs do not equal evidence.