Police forces were literally created to protect capital, and then back ported to supporting local communities. The parent poster is correct, police exist primarily to protect the interests of capital - that's literally their history.
Police in the US exist to protect themselves. They don't care if you're rich or the embodiment of capital or not. They won't do things that would put themselves at risk, and they won't get fired for not doing their jobs.
Saying "thing A was originally B therefore A is secretly B now" doesn't seem to usually be true.
I don't know man being the kind of sheltered person complaining that the police doesn't drop everything for your meme e-bike sounds rich enough for me.
I take it you've never spent time with rich people.
They are always on two kicks: self-improvement or making more money. If they have "free time" they are travelling and reading books, not spending time with not-rich people, except perhaps as a safari to understand them better.