One of the worst moments of my life was watching a gay pride parade in Paris. I had seen them before and was kind of used to it; it was the eyes of the Islamic shopkeepers on St. Germain Blvd. that caught my attention in a most horrific way. You cannot disguise hate or retribution.
That's what those parades you know nothing about are doing. Take it to the bank.
I don't like "normal" parades (like New Years) so it's safe to say I like gay pride parades even less. But what are they actually doing to society? Not much. The destruction of the nuclear family even in my lifetime has been staggering. I know 10 couples in the last 5 years of my parents Church that the wife ran off after 20 to 40 years of marriage for another guy,leaving their children. I know 5x that many who have divorced. I know 10x as many as that who have cheated on their S/O. You may get more worried about a gay pride parade. I'm worried the moral right has been corrupted from within.