I'll do my best. I can vaguely remember some of the words that came out of my mouth when I was around 13-18 years old. Most of which were slurs rather than deep thoughts.
The slurs were more to do with what was typical/acceptable talk at the time (late 90s-early 2000s) in combination with teenage boys love nothing more than being assholes to each other (typically to my straight friends) because they think it's funny.
Some of my "deeper thoughts", for as well as a teenager can articulate, were to do with not understanding and frankly not actually trying to understand any other perspective. I believe I was simply trying to boost myself by stepping on others. I don't think there was ever a point in which I hated gay people, but I do remember saying how I thought it was disgusting (gay sexual acts)and I had opinions on gay couples raising children even though I had no evidence to support those opinions.
I don't think any of it ever scared me, none of what I said was out of fear. I was never worried about liking it, as some other comments suggested. Instead, It was an easy way to safely feel superior to cope with my lengthy list of insecurities.
As my brain began to mature, my thoughts quickly changed.
So... Immaturity, insecurity, ignorance.
Nowadays... regret. Sorry everyone.
Good. But hit Moscow while you're at it. They need to feel unsafe. A good knock to Putin's popularity.