It’s actually not. Gmail was in beta for 5 years. Do you think anyone had a free pass to hack gmail during these 5 years? You don’t understand the field you are attempting to operate in, even remotely.
You didn’t just report it though, you exploited it without permission. If you would take 10 seconds to read, maybe you would understand this is what people are concerned with.
You are clearly too immature to be operating in this space (vulnerability reporting). Delusions don’t help your case.