I've seen some statistics (not sure about their validity) stating that around 10% of the population are gay/bisexual, so if this were the case then having 7% more males than females wouldn't necessarily be a problem.
Unless 10% of females are also gay/bisexual, then it all cancels out. Also, gender disparities could affect the gay/bisexual communities just as much as the straight community.
That's true. Well at least the imbalance is only in a single age group, not for instance like in China where selective abortions have lead to a nationwide gender gap[1].
Dating was actually easier for me in china, and my now Chinese wife says is still is sort of hard for girls to find the right guys especially at the higher end of the socioeconomic spectrum. It's complicated.
I lived in China for a couple of years and found the same, but I don't think our experiences would be representative of those of the average mainland Chinese male.