Everything else aside, this is a spectacularly shitty comment to make.
Pride for LGBTQ+ people was a reaction to the abuse, attacks and systemic oppression faced by people in that community. Pride was to show that they weren't afraid, refused to stay hidden, and wanted to show they were not ashamed of who they were.
It is not making a fucking fuss, nor should they be forced to 'do it quietly'.
Straight people are not persecuted, oppressed, or abused for being straight so even your stupid comment about having Pride for being straight and co-opting the struggles of so many people is frankly a bit disgusting.
Kink at Pride is one thing and I can understand being uncomfortable with that. But to correlate 'one guy being gross' with 'everyone at Pride is making a fuss about being gay and I don't really know why' is... not it.