That's definitely one interpretation. I do see it, and Kensley may not be polite, but initially she seemed quite enamoured with him and now she's not. Or at least that's the edit.
I see all these other cues of an adult male not respecting her space, her familial relationships etc...and steam rolling over her. From that perspective I can see how she's completely put off by him. It's not like the swing is the only incident. He didn't respect her paternal relationship. Repeatedly. Yes she was rude, but he was rude first and he had all the power. He made excessive comments to Olivia even after she asked him to stop. He was showing PDA with Molly in the restaurant even though Olivia was by herself and asked them to stop. During the TH with Molly he belligerently insisted on discussing Olivia's sex life even though Molly said it was off limits. He constantly crosses the line and it's not acceptable for anyone, regardless of culture. When you're told to stop, STOP
Even if Kensley is rude it doesn't mean Luis isn't disrespecting her boundaries. I don't see this as a ´Murica thing. I see this as a respecting a child's autonomy thing. The nationality, ethnicity or socioeconomics are irrelevant.