I'm not going to hold my breath for them to reply that it actually doesn't. I assume they're referring to the idea that if you're opposed to Israel's genocide of the Palestinian people, then you therefore support Hamas terrorist attacks, as if there is no middle ground between "let the terrorists do whatever they want" and "just bomb their hospitals and gun down fleeing civilians.'
It didn't. Someone posted about snipers spotted near a protest, which is common at any large crowds in big cities (like the Macy's Thanksgiving Day Parade). It's just a bad meme.