A trans friend I never stopped caring about recently asked for financial help. I know this friend has been mad at me every since they learned about my view on the gender issue, but I sent them money anyway because it sounded like they really needed it and, may be I am crazy, but I define "kindness" as the ability to care about people who may be different from you, hold different beliefs, etc. - after all, it's easy to care only about people who share your opinions.
If someone I vehemently disagree with showed me an act of kindness, I would have reached out and thanked them anyway. I would have asked myself whether or not I may have misjudged or misunderstood them.
But no, they decided to simply block me on their donation platform (but kept the money anyway).
I didn't do this for them for recognition. I kept my donation message private. I simply saw a fellow human being who needed help.
It doesn't seem like our definition of "kindness" is aligned.